Description: Made of high quality brass, not easy to rust and durable. This caps is used for protecting bicycle spokes, which will prevent from damaging and sliding, easy to assemble and disassemble. Small size, easy to store and carry, includes 50 spoke nipples, can meet your different needs. Embellish your bicycle spokes and makes them different,refit your bicycle look in great extent. Suitable for various bicycle, such as MTB, road bike, mountain bicycle, and etc. Specification: Material: Brass Size Chart: Packing size: 7x5x3cm/0.28x0.20x0.12inch 12G: about 13mm/0.51inch in length, suitable for 2.6mm/0.10inch diameter spokes 14G: about 14mm/0.55inch in length, suitable for 2mm/0.08inch diameter spokes Package Includes: 50 Pieces Bike Spoke Nipples(4 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!