ITEM NAME:1Pcs Stainless Steel Adjustable Bearing Cam Wheel for Rotary Tattoo Machiner FT Feature: 1. The eccentric wheel can drive the tattoo motor. 2. Suitable for most tattoo motors; 3. It is made of stainless steel, carved and formed, and the whole is accurate and durable Description: Material:Stainless steel Weight:14g Eccentric wheel outer diameter :20mm Eccentric wheel inner disc outer diameter :12mm Height: 11.5 mm Inner hole diameter :2mm Package Includes: 1Pc T attoo Bearing Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement..The eccentric wheel can drive the tattoo motor. Suitable for most tattoo motors;. 1Pc T attoo Bearing. Material:Stainless steel. Height: 11.5 mm.