Feature●[Package] Include FIVE different lengths of Pink; Yellow; Silver; Gold; Black. Each has 4 pcs, totally 20 pcs.●[Function] Work to fine-tune the carburetor, optimal performance and improve stability.●[Material] Made of high quality metal materials, good elasticity, not easy to bend or deform.●[Installation] Easy to replace, choose the right length spring for your needs, take short time to operate.●[Note] Check the quantity after receiving. Contact us if theres any problems.Description