This is the Golden Horizons Aluminum 35T 64P Pinion Gear. FEATURES: Aluminum construction Anodized orange in color INCLUDES: One Aluminum 35T 64P Pinion Gear with set screw SPECS: Length: 8.9mm (0.35") Inner Diameter: 3.25mm (0.13") Teeth: 35 cnh 9/24/09 ir/jxs