The Muc-Off Expanding Microcell Pink Sponge has a compact shape and design which is perfect for use on your Bike / Wheels.Compact shape and designExpand into an easy to use, bike and wheel friendly sizeMuc-Off logo included in the Sponge designErgonomic shape for maximum comfort and ease of useVacuum packed for space saving on arrivalThe Muc-Off Expanding Microcell Pink Sponge is contoured to an ergonomic shape for maximum comfort and ease of use. We ve also vacuum packed it to take up less space and to use less packaging materials. Once you ve opened the package, the sponge will expand into an easy to use, bike and wheel friendly size.