Made of food-grade liquid silicone with integral injection molding, no burrs or sharp edges, soft and elastic to avoid collision damage, meets infant chewing safety standards. Rich surface textures exercise baby's tactile perception, easy to clean and resistant to high-temperature disinfection, ideal safe toy for toddlers' intellectual enlightenment.
Material
Food-grade LSR
Hardness
Shore A 30-40
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Macaron Multi-color, Transparent, Customizable
# Food Grade Liquid Silicone Baby Building Blocks Chewable Educational Toys
Our Food Grade Liquid Silicone Baby Building Blocks are purpose-designed sensory and educational toys tailored for infants aged 3 months to 3 years, crafted from premium food-contact-grade liquid silicone rubber (LSR) to meet the unique safety and developmental needs of young children. Unlike traditional plastic or wooden blocks, these LSR blocks combine chewable teething relief, tactile sensory stimulation, and early STEM learning functionality into a single, long-lasting product.
Each block features raised, non-toxic embossed patterns including numbers, geometric shapes, animal silhouettes, and textured surfaces that support fine motor skill development, hand-eye coordination, and cognitive recognition as children stack, sort, and manipulate the pieces. The soft, resilient LSR material eliminates the risk of oral injury during teething, while the material’s inherent flexibility prevents scratches to household surfaces, furniture, or delicate baby skin. All blocks are free of BPA, phthalates, PVC, lead, and harmful chemical additives, with a naturally non-porous surface that resists bacterial growth to support infant health and safety. Core selling points include 100% food-safe construction, drop-resistant durability, dishwasher-safe cleaning compatibility, and age-appropriate design that grows with your child from teething phase through preschool learning.
All building blocks are manufactured from high-purity medical/food grade LSR with a crosslink density optimized for infant use:
The blocks are engineered to withstand repeated teething, dropping, and daily use without degradation:
The blocks are manufactured via injection molding under controlled cleanroom conditions to ensure consistent quality:
Unlike plastic blocks that may leach microplastics or harmful additives during chewing, our 42 Shore A LSR blocks are formulated with platinum-curing technology that eliminates unreacted monomers and byproducts. The material is fully inert when in contact with baby saliva, gastric fluids, and food, making it safe for prolonged teething use. All embossed features are raised less than 1mm to eliminate choking hazards, and the block dimensions (5cm x 5cm x 5cm) exceed regulatory minimums for infant toys to prevent accidental swallowing.
The high tear resistance and low compression set of the LSR material mean the blocks retain their shape and structural integrity even after months of biting, throwing, and stacking. Unlike foam blocks that tear easily or wooden blocks that splinter when dropped, these LSR blocks can withstand impacts from heights up to 2 meters without damage, and will not fade, warp, or degrade even after repeated high-temperature dishwasher cycles or boiling disinfection. The non-porous surface does not absorb milk residue, food stains, or odors, preventing bacterial growth that is common with porous teething toys.
The 42 Shore A hardness is intentionally calibrated to provide gentle gum pressure relief for teething infants (3–12 months) while maintaining enough structural rigidity for toddlers (1–3 years) to stack 6+ blocks without collapsing. The embossed patterns support tactile exploration for younger babies, while the number and shape engravings introduce early math and geometry learning as children grow. The blocks also feature soft, muted color tones that avoid overstimulating infants’ developing visual systems, while remaining distinct enough to support color recognition training.
These LSR blocks are fully compatible with all common infant toy disinfection methods: boiling for 5 minutes, steam sterilization, top-rack dishwasher cleaning, and wiping with 70% alcohol wipes. The material is water-repellent and has no hidden crevices where mold can grow, eliminating the need for complicated disassembly or specialized cleaning products. The blocks are also lightweight and travel-friendly, making them suitable for use at home, in daycare centers, or during family trips.
These blocks are ideal for daily teething relief, independent play, and parent-child interactive learning at home. Caregivers can use the blocks to teach color sorting, shape matching, counting, and basic construction skills, while the soft material eliminates the risk of injury if a baby falls onto or throws the blocks during play.
The durable, non-toxic construction makes these blocks suitable for high-traffic daycare environments, where toys are shared between multiple children and require frequent disinfection. The material’s resistance to scratches and impact damage reduces replacement costs for early education providers, while the sensory design aligns with Montessori and play-based learning curricula for children under 3 years old.
Occupational therapists use these blocks to support fine motor skill development for infants with delayed motor function, as the soft, non-slip surface is easier for small hands to grip than smooth plastic blocks. The 42 Shore A hardness also provides appropriate tactile feedback for children with sensory processing differences, supporting sensory integration therapy.
The blocks are packaged in BPA-free, recyclable packaging, making them a popular choice for baby shower gifts, first birthday presents, and holiday gifting for families with young children. The product’s third-party safety certifications provide peace of mind for gift-givers and caregivers alike.
We offer this block line in three hardness levels tailored to different age groups:
The standard 5cm cubic block is the default size for most use cases, but we also offer alternative sizes for specific applications:
Custom size and shape options are available for bulk orders (minimum order quantity: 500 sets) with custom embossed logos or patterns upon request.
We offer two material grade options for institutional buyers:
All of our Food Grade Liquid Silicone Baby Building Blocks undergo rigorous quality control throughout the manufacturing process to ensure compliance with global safety standards:
