Bicycle spoke wrench; perfect tool for adjusting spokes to be tightened and correcting rim distortion Used to adjust bicycle rims; the non-slip perimeter pattern is designed for a stable grip while working on your bike. This tool won't easily slip out of your hand when adjusting the spokes Handy pocket sized tool; an invaluable tool for cyclists to build, repair or align wheels to keep their bike spokes straight and true. Made of durable high quality stainless steel. Wear-resistant and durable Diameter; 8 split design for 10G (5mm), 11G (4.4mm), 12G (3.96mm), 13G (3.45mm), 14G (3.35mm), 15G (3.23mm) size spoke nipples. Small and lightweight, 1.63" in diameter, 0.44" in width, and weighs 0.9 oz Material; Hardened and tempered carbon steel keys used to adjust spokes on various cart wheels. For spoke sizes between 10-15