Train your child's observation and attention Ldeal for building fine motor skills, hand eye coordination, inspire baby to explore the worldB grasping Interlocking Discs, babies' grasping abilities can be effectively improved The beginning of learning and accumulating wisdom SUPERB CRAFTSMANSHIP the laser accurately cuts the graphics, smooth, and without bristles.Material advantages our geometric panel material is from Germany with AA grade beech wood, which is safe. Product specification Size: 4.9 x 4.1 x 2 inchesWeight: 2.24 poundsSuitable age: 0-3 years old Size suitable for baby The length of the disc is suitable for baby's grip Unique shape Cultivate the baby's aesthetic ability, and thus establish the awareness of geometric figures