BIQU Extruder Pulley 36Teeth Bore 5mm Stainless Steel Drive Gear for 1.75mm & 3mm 3D Printer Filament (Pack of 5pcs)

Worked good on my cr-10s

Much better than stock... This was a nice upgrade to my stock Monoprice i3 clone.

Great replacement gears

Works well

Perfect upgrade for extruder gears, used in both direct drive and Bowden configurations and works perfectly and cheaper than most, definitely a win.

very easy to install on an ender 3v2 and I didnt even have to adjust my e-steps

replaced the brass gears that keep wearing down..these should come stock with the printers

Worked great.

A little bigger than stated 5mm inside diameter.

They work great the higher teeth count eliminates grinding.