10pz Ingranaggi Mandrino Plastica 14 Denti per Albero 2mm Modello Robot Motore Cambio Giocattolo
Suit for a science DIY projects such as rc model car, model electric robot and windmill, education such as displaying how gear rates work, and any other family small motor DIY project. Hole: 1.95mm (fit 2mm shaft tightly).