Sufficient content: this package contains 10 pieces extruder wheels in a pack, sufficient quantity to satisfy your various demands and replacementsCheck the dimension: each 36 teeth gear measures approx. 11 x 11 mm/ 0.43 x 0.43 inch (L x W), its inner diameter is approx. 5 mm/ 0.2 inch, 36 teeth, fit compatible with most standard 3D printers; Please check whether the size is suitable compatible with your needs becompatible withe purchasingPractical function: our 3D printer parts can replace your broken one and make your printer work more efficiently, improve the percompatible withmance and reliability compatible with your 3D printersGood bearing capacity: these drive 36 teeth gears are made of quality stainless steel, rustproof and no corrosion, durable and stable to use, with good bearing capacity, allow compatible with improving your printers' work efficiencyWide compatibility: our stainless steel extruder wheel gears are easy to install, compatible with compatible with CR-10, CR-10S, S4, S5, Ender 3, Ender 3 Pro and most 3D printersColour:silverMaterial:Stainless steelPackage Contents:10 * Extruder Wheel GearOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.