Quality material: 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 for improving your printers' work efficiency.
Wide compatibility: our stainless steel extruder wheel gears are easy to install, compatible with CR-10, CR-10S, S4, S5, Ender 3, Ender 3 Pro and most 3D printers.
Check 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 for most standard 3D printers.
Sufficient content: this package contains adequate quantityof extruder wheels in a pack (15 pcs), sufficient quantity to satisfy your various demands and replacements.
Easy to use: easy to replace your old or worn Driver Gear Pulley. Use the Allen Key Wrench  to unscrew the Allen Head Screws on the old Pulley. When the screw is loose, remove the Pulley and place the new Pulley. Tighten the screw.
<p><b>Features:</b></p> <p></p> <p>Nice performance:</p> <p>Our 3D printer parts can replace your broken one and make your printer work more efficiently, improve the performance and reliability for your 3D printers.</p> <p></p> <p>Good compatibility:</p> <p>Our extruder wheels are compatible with CR-10, CR-10S, S4, S5, Ender 3, Ender 3 Pro and most standard 3D printers, sturdy and durable for your long-term using.</p>