• 【Multi-Functional Design】Serves as both a tool box and portable backpack with adjustable shoulder strap, combining storage and portability for convenient on-the-go play.
• 【Flip-Top Storage System】Features a hinged lid with storage compartment to prevent loss of small parts and tools, keeping everything organized and secure.
• 【Safe and Durable Construction】Made with natural beech wood body and metal hardware components, providing an eco-friendly, non-toxic, and robust design built for long-term use.
• 【Cognitive Development Tool】10 different screw and nut configurations help children recognize shapes, understand mechanical principles, and explore cause-and-effect relationships.
• 【Multi-Skill Enhancement】Develops multiple abilities including hand-eye coordination, concentration, observation skills, imagination, exploration capabilities, and cognitive development through hands-on play.

Specifications:

• Dimensions: 19.5 cm x 9.3 cm x 4 cm (7.6 in x 3.6 in x 1.5 in)
• Shoulder Strap Length: 92.5 cm (36.4 in)
• Material: Beech wood body + stainless steel/plated steel hardware