ITEM NAME:New Hand Watch Crown Winder Helper Mechanical Winding Repair Tool 3.5mm L1T6 New Hand Watch Crown Winder Helper Mechanical Winding Repair Tool 3.5mm L1T6 100% brand new It is spring loaded for ease of use High quality stainless steel handy tool for wind up your watch Excellent tool if the winder/crown on your watch is small and hard to wind, makes winding up all watches easier Adjustable, fit most watch crown color: Silver Material: stainless steel Length: Approx.78mm Opening Diameter: Approx. 3.5mm Package Included: 1 x Crown Winder 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.