Plastic Gear Package Parts 80pcs Gear Building Set Robot Parts Gear for Science Project Mechanical Model

Gear package parts:the set is made of plastic material, and has ,robot parts gear Robot parts gear:the set includes multiple kinds of gear to meet your different needs,gear package parts Mechanical model gear:it is stable and has great performance while using,gear package parts Great for DIY science and small production, product design and mechanical model Lightweight, easy to carry and use › See more product details