Muc-Off Expanding SpongeMuc-Off Expanding Sponge features a Microcell construction and is contoured into an ergonomic shape to provide maximum comfort and to make it easy to use. Designed so it aids cleaning frames and wheels perfectly and to ensure complete comfort when doing so.Features:CompactErgonomic shape for maximum comfort and ease of useEasy StorageBuy Muc-Off Workshop from Chain Reaction Cycles. Ride. Eat. Sleep. Repeat.