The torx-style fastener is becoming the new standard for modern bicycles and components. Pedro's popular Y-Wrenches feature heat-treated tool steel construction and durable plastic body designed to stand up to the harsh conditions of professional use. The new improved ergonomic design features a refined body shape for improved fit and comfort, new quick-spin bit sleeves for speed and versatility, and bit size indication for quick tool identification. Backed by Pedro's lifetime warranty.