【Fit for】:The RC gear fit for 1/16 E-Revo,Slash,Summit. 【Long-lasting Performance】:The Aluminum RC Bulkhead Gearbox, Exquisite workmanship, Tough steel for long-lasting durability and low wear,more quiete. 【Advantage】:The RC Transmission Case Gearboxes adopts a closed design to effectively prevent the entry of sand, stones, branches, etc., and prolong its service life; this sealed gearbox is sand-proof and dust-proof, with anti-skid protection, and can protect the gear. 【Easy to Install】:The RC Hops Up can be directly installed, do need any modification. It is designed to allow more smooth rotation and strength! Providing unmatched driving versatility. 【Tips】:In order to make the product more stable and make the screws not easily separated from the upgraded accessories, please stick screw glue on any metal-to-metal connection. Especially the position of various screw holes. Rcarmumb RC Bulkhead Gearbox Upgrades Part for 1/16 E-Revo (VXL),Slash 4WD,Summit,Aluminum Front Bulkhead Gearbox Hops Up,Red