Kid K'Nex Budding Builders Building Set Features: 100 large parts with vibrant colors and made with premium-quality Let your child choose from 50 building ideas to create a wide array of Kid K'NEX designs! 50 suggested building models! This building set comes in a plastic tub for convenient storage of built models and loose pieces Building with K'NEX puts children on a path of STEAM/STEM subjects (science, technology, engineering, arts & math) It aids the growth of key developmental abilities like fine motor skills, hand-eye coordination and dexterity Suitable for ages 3+ Specifications: Dimensions: H:20.0 x W:35.5 x D:21.5 cm Guarantee:1 year Material: Plastic/Metal Model Number: KN85618 Self Assembly Required: Yes