This solid black O - Ring can accomodate a strap of 15mm.

Buttons Sew on

15mm Sew on Button

15mm - 4-hole sew-on button is Plastic and and has no coating.

Buttons Sew on

15mm Sew on Button

15mm - 4-hole sew-on button is Plastic and and has no coating.

A solid black solid brass 15mm eyelet.