This 3C-2 Old Brass with Straight Puller is 3.90 - 4.12mm in width and 1.42 - 1.55mm in height. It is compatible with Opti S4 brand of zip.
Usage: Can be used on zippers on dressed, wallets, pockets and pillow cases.
Type of Zip: Coil
Style: Straight Puller
Colour: Old Brass