Rick Rack

Rick Rack is something you're sure to know, even if you don't know it's name. Its a wavy edged trim, used on all manner of clothing/craft and other things.

In cloth pad use it's often found as the bands that hold liners in place on a base-liner style pad.

While it's widely used, it is known to shrink and curl up, where a satin ribbon would sit flatter and won't shrink, but may not be as durable in the long run.

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Image from http://www.funexpress.com