This toy is made of wood so kids can play safely. . It is cultivating children's hands-on ability, hand-eye coordination and logical thinking ability. All items come in the right size for kids to grab and play with. Features - ColorLight Brown - Material: Wood. - Size: 13.00X8.90X8.70cm/5.11X3.50X3.42in. - Made of wood material, this toy is and safe to use, perfect for parent-child interaction, DIY projects and everyday play. - It comes with a unique password box shape design, which is very attractive to your child. - Suitable for the development of children's logical thinking and hands-on ability. - Fine polishing ensures rounded without burrs, not hurting hands, a great present for kids. - The perfect birthday present for your kid, let him have his own privacy, it will leave him a happy childhood. Package list: 1 set x password case DIY material