Comprehensive set: This hex key allen wrench set includes 9 essential tools with sizes ranging from 2 mm; 2.5 mm; 3 mm; 4 mm; 5 mm; 6 mm; 8 mm, to 10 mm and t25. It is designed to meet all your repair needs efficientlyQuality material: Crafted from quality chrome vanadium steel, these sliding T handle tools are wear resistant and sturdy. They are built to withstand deformation and can be used repeatedly over a long periodUser friendly design: Featuring a T shaped handle that easily converts into an L Shaped with a spring clip mechanism for quick adjustments. This design ensures ease of use even in tight spaceCompact and portable: The rotate sleeve hand tools boast a compact structure and lightweight design making them easy to carry around. Ideal for home repairs or personal bike maintenanceVersatile application: Perfectly suited for various maintenance tasks including home use, bike repairs, bicycle adjustments, automotive work, and small engine fixes, making it an indispensable toolset for any DIY enthusiast or professional Specification: Material: Vanadium Steel Size Chart: 2mm:15cmx6.3cm/5.91inchx2.48inch2.5mm:15cmx6.3cm/5.91inchx2.48inch3mm:15cmx6.3cm/5.91inchx2.48inch4mm:17.5cmx7.4cm/6.89inchx2.91inch5mm:19.7cmx8.6cm/7.76inchx3.39inch6mm:21.6cmx9.8cm/8.50inchx3.86inch8mm:25.2cmx12.3cm/9.92inchx4.84inch10mm:28cmx14.2cm/11.02inchx5.59inchT25:19.4cmx8.6cm/7.64inchx3.39inch Package Includes: 9Hex Key Allen Wrenches Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.