Material: Wood Safe Teethers ToysThe stacking shape blocks are made of high-quality food-grade silicone, BPA-free, safe and non-toxic. The blocks are soft enough to squeeze to make a sound to attract the baby's attention. The smooth edges and soft surface are safe for babies to chew. It can be a soft teething toy for babies with their first teeth. ToyEvery child loves stacking or nesting colorful puzzles. These stacking toys provide all kinds of fun for kids. Baby can play with stacking blocks toy or place soft blocks of the same shape in matching areas of the base. Kids can also string these blocks together like beads. It can exercise baby's hands-on ability and creativity. Best Gift for BabyThese early education toys are easy to clean with a damp towel, and they come with a bag for easy storage and packing. This fun stacking toy is a multi-functional early education toy, perfect for babies over 6 months old and can be given as a gift to newborns. Its the best toys for babies 6-12 months old.