This 7120 Single Snap Carrier works with 3091 snap tape that is sewn onto the top of the curtain, providing a ripple fold appearance with no pleats required. Snaps allow for easy removal and replacement of curtains. For ripple fold draperies and curtain panels. 14/bag. Compatible with RECMAR 32124, 42124, and 52124 curtain tracks, and 84003 and 84004 ball bearing carrier curtain tracks as well. Dimensions: Head Diameter & Body Width .43 in, Neck Diameter .15 in, Length 1 in., ID of snap opening .282 in.