Quick release adapter allows for easy installation and removal of pedals. Constructed with an aluminum alloy body and cro-moly axle for enhanced durability and long-lasting performance. These quick-release pedals offer a smooth and reliable cycling experience. Features: - Quick-release design compatible with MKS systems; easily attaches to and detaches from crankarm without tools - Durable aluminum alloy body with cro-moly axle for lasting strength - Universal 9/16 inch threaded spindle fits most folding bikes, mountain bikes, and road bikes - Sealed bearings and DU bushing structure ensure smooth rotation - Side reflective strips enhance visibility and safety in low-light conditions Specifications: - Material: Aluminum alloy - Axle size: 9/16 inch - Dimensions: 8.7 x 8 x 2 cm (3.4 x 3.1 x 0.7 in) - Unit weight: 151 g (5.3 oz) - Package weight: 433 g (15.2 oz) Package includes: 1 x Pair of quick-release pedals