Mountain Bike Thru-Axle to QR Hub Adapter - Product Highlights Features: Sturdy and Practical: Crafted from aluminum alloy for optimals performance and longevity. This adapter is designed to withstand the rigors of cycling while maintaining its functionality. Axle-Conversion: Converts a 12mm Thru Axle-hub to fit a 9mm-Axle (Quick Release), as well as a 15mm Thru-Axle hub to fit a 9mm-Axle. Easy to use: With a simple, tool-free setup, this adapter allows for fast and hassle-free repairs or conversions, so you can get back on the road quickly. Enhanced Versatility: With this adapter, you can quickly and easily switch between Thru-Axle and Quick Release setups, providing convenience and flexibility. Repair & Replacement Part: Ideal for hub maintenance, repair, or as a replacement accessory. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: aluminum alloy color: black/red/gold/silver Specifications: 12MM to M9MM/15MM to M9 Size: 21 x12x9x5mm/21x15x9x5mm Package List: 1 Pair Bike Hub Thru-Axle Conversion Quick Release Adapter