100% brand new and good quality. Large hole style, no distribution screws and tools required; installation aperture is 9mm. According to bicycle industry standards, the rear axle thread specification is M10x1 (actual measured diameter approximately 9mm). As long as the bicycle rear wheel is not quick-release and uses a threaded axle, it can be installed following standard specifications. However, due to variations in manufacturing standards, compatibility cannot be guaranteed for all bicycles (verify based on actual measurements). Rear axle protrusion length of 6mm or more allows direct installation. If the length is insufficient, remove the nut and directly screw the pedal into the replacement nut. Specifications: Color: Black, Red, Blue, Colorful Material: Aluminum Alloy Sizes: Approx. 100mm / 3.94", 28mm / 1.1", 9mm / 0.35" Quantity: 1 pair Package Includes: 1 Pair x Bike Pegs Note: 1. Due to manual measurement, there may be a slight tolerance of 1–3cm. 2. Due to differences between monitors, the picture may not reflect the actual color of the item.