The Bike Cleaner Concentrate in a handy refill pouch. Muc-Off's Nano Tech cleaner in concentrate form. Each Bike Cleaner Concentrate pouch uses 89% less packaging than the equivalent 2 bottles of 1 liter Muc-Off Cleaner. So dona (TM)t chuck out your old Bike Cleaner bottle; save it and save the planet. The Bike Cleaner concentrate can also be used as a powerful degreaser in its concentrate form.Quickly and safely cleans using Nano TechnologyPowerful degreaser in concentrate formUses 89% less packaging that two 1 Ltr Muc-Off bottlesBiodegradableSafe on all surfaces including carbon fiber & anodized metalWill not harm seals, brake pads or rotors