Material - Our metal copper sewing thimble finger protector is made of copper,firm and durable

Thimble Size - Inner diameter: 0.67"; Width: 0.39". The size can be adjusted according to the size of the fingers, adjust the aperture of the thimble with a vise.

Function - This sewing thimble be used for some articles that are difficult to be pierced and has the function of jacking force.
A Practical Sewing Tool - ideal for sewing and repairing sails, canvas, leather and similar materials.