#13 - 18.0 mm ID Closed-End Thimble design are manufactured by C.S. Osborne & Co. in the US has a course grate exterior, made of nickel-plated brass and used when hand sewing and repairing sails, boat canvas, tarps, leather goods, awnings and similar heavy fabrics. Available in 7 sizes using English measuring standards.
Content: Nickel-Plated Brass.
7 Sizes - English Standard Size with inside diameter in brackets:
5 – (13.2 mm) 7 – (14.0 mm) 9 – (14.5 mm) 10 – (15.4 mm) 11 – (16.0 mm) 12 – (17.0 mm) 13 – (18.0 mm)