Hand Watch Crown Winder Helper Mechincal Winding Repair Tool 2.5mm-7mm

Specifications:
Material: stainless steel
Length: Approx.78mm
Opening Diameter: Approx. 2.5mm,3mm, 3.5mm, 4mm, 4.5mm, 5mm, 6mm, 7mm

Features:
It is spring loaded for ease of use
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

Package Included:
1 x Crown Winder