Panasonic KP-110 Electric Pencil Sharpener replacement Nylon gear 61 tooth Outer diameter 37.7 mm You'll receive a new Nylon gear shown on images 1, 2 and 3 Panasonic KP110 sharpener image is for fitment illustration only - sharpener is not included. Please take your sharpener apart prior ordering to make sure it will fit yours model This fine Nylon gear has improved design for better durability and performance Our gear is 50% stronger compare to OEM and other replacements It fit snugly and won't slip of the shaft thanks to fine tuned center hole made out of Nylon - tough and flexible plastic Nylon naturally slippery, no lubrication on gear teeth required! We recommend 1 drop of machine oil on to the cutter shaft though. Only Nylons should be used for gears where a slippery surface is desired. All other materials (PLA, ABS, PET, etc.) will grind creating a plastic dust and eventually fail! For details, please review all pictures, or you can find installation videos on YouTube Do not waste your money on ABS or PLA plastic gear that may strip or even melt!