Function: * For tightening square screws. * Please do not force the rod or press the force more than the hexagonal rod, otherwise the product will slip out of the screw, the screw will be broken off or the hexagonal rod will be broken, and the user may be injured! ! ! Technical data: Product name: L-shaped square wrench Material: chrome vanadium steel Color: silver Optional size: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm Length * width: 3mm(66*23mm), 4mm(74*29mm) , 5mm(85*33mm), 6mm(96*37mm), 7mm(97*38mm), 8mm(108*45mm), 9mm(123*50mm) Suitable for: tighten square screw Quantity: 1Pc Package content: 1 x L shape square key Note: 1. Transition: 1cm = 10mm = 0.39 inch.2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.3. Please allow slight manual measurement deviation for the data.