1. Size Type: Yshape 3way bicycle hex key; Hex size: 8 mm, 9 mm, 10 mm; total length: 130 mm / 5.12 inches, bar diameter: 9.5 mm / 0.37 inches 2. Material Our Yshaped bicycle triple key is mainly made of galvanized and polished carbon steel, which has strength and hardness, and is rustproof, corrosionresistant, and shockproof. It is not easy to break, damage, or deform, ensuring longlasting use. 3. Features This triple hex key features a unique Yshaped design. The handle is comfortable to grip, offering ergonomics and technical advantages, making it easier to control with less effort. Its compact design includes three different sizes, making it lightweight, practical, and portable. 4. Application This portable hex key is ideal for outdoor cycling and is an essential tool for bicycle and maintenance. Additionally, the key set can also meet your daily needs for indoor furniture, home maintenance, electronic equipment, mechanical tools, and more.