1. Size Type: Yshape 3way bicycle hex key; Hex size: 14 mm, 17 mm, 19 mm; Total length: 75 mm / 2.95 inches, bar diameter: 8.5 mm / 0.33 inches 2. Material Our Yshaped bicycle triple key is primarily made of galvanized and polished carbon steel, offering strength and hardness while being rustproof, corrosionresistant, and shockproof. It is not prone to breaking, damaging, or deforming, ensuring longlasting durability. 3. Features This triple hex key features a unique Yshaped design. The handle provides a comfortable grip with ergonomics and technical leverage points, making it easier to control with minimal effort. Its compact design combines three different sizes, making it lightweight, practical, and portable. 4. Application This portable hex key is ideal for outdoor cycling and serves as an essential tool for bicycle and maintenance. Additionally, the key set can meet daily needs such as indoor furniture assembly, home maintenance, electronic equipment, mechanical tools, and other requirements.