Keep your bike chain perfectly untangled and your frame pristine during transportation, cleaning, and maintenance with our innovative Bike Chain Holder. Key Features: Ensures chain tension and prevents contact with the frame during cleaning, transportation, lubrication, and storage. Simple installation: Remove the rear wheel and insert the chain keeper into the dropout above the rear derailleur. Constructed from high-quality plastic, making it rust-resistant, corrosion-resistant, and exceptionally durable. Compact and lightweight, making it easy to carry for quick repairs wherever you go. Compatible with both MTB and road bikes, suitable for aluminum and carbon frames. Specifications: Material: Aluminum alloy, Plastic, Stainless steel Color: Black Type Options: Type A, Type B, Type C Packing Size: 16.5 x 8.5 x 1.5 cm / 6.5 x 3.3 x 0.6 in Packing Weight: 24 g (Type A) - 74 g (Type B) - 80 g (Type C) Package Includes: 1 x Bike Chain Holder 2 x Sponge Rings