Park Tool CB-4 Bio Chainbrite Cleaner Riding bikes is already environmental friendly as it is. Use 100% biodegradable, natural, plant-based Park Tool Bio Chainbrite degreaser to freshen-up your chain and components, and you've reaches a whole new shade of green! The CB-4 Bio Chainbrite Cleaner is formulated to be used full strength (no diluting with water) in conjunction with the Park Tool CM-5. 2 Cyclone Chain Scrubber or as a general purpose degreaser. Chainbrite can be used liberally as it won't harm alloy, plastic, or rubber parts. Features Size: 16 oz. bottle 100% biodegradable, natural, plant-based degreaser Use CB-4 full strength, do not dilute with water Not harmful to alloy, plastic, or rubber parts Related Articles THREADLESS HEADSET SERVICE THREADED HEADSET SERVICE CHAIN CLEANING WITH A PARK TOOL SCRUBBER COASTER HUB OVERHAUL BIKE WASHING AND CLEANING HEAD TUBE REAMING AND FACING FORK CROWN RACE CUTTING AND FACINGSAFETY DATA SHEET Manufacturer's Part No: CB-4 UPC: 763477000972 | Park Tool | Cb-4 Bio Chainbrite Cleaner 16 Oz | Rubber