This set of 21 Beech wood twistable nuts and bolts features 7 different shapes and colors. Each shape features a different number of sides so children can practice early geometry. Improve finger dexterity and motor skills by twisting these shapes on and off the 21 wooden sticks. Children will love the bright colors, smooth feel and rounded edges on these twistable shapes! Each shape is coated with non-toxic paint that enhances the wood's natural grain. For ages 12m+. | Size of bolt: 2.6"L.