ENDOZIME SPONGE is uniquely contoured to fit around the outside sheath of scopes and is pre-saturated with Endozime Bio-Clean to provide a quicker, more thorough pre-cleaning. The minis unique smaller diameter opening helps protect delicate small scopes from aggressive cleaning where too much pressure may be applied during wiping. Each Endozime Sponge is individually wrapped for one-time use and saturated with our enzymatic cleaner Endozime, to start cleaning on contact.