Description The Icetoolz Spoke Wrench 10-15G, 8-notch allows you to true a wheel with spokes from 10 gauge to 15 gauge. Meaning it works for spokes on any bicycle wheel! It has an extra inner ring that prevents the nipple spoke tensioner from falling down. The orange plastic ‘barbs’ prevent the spoke nipple tensioner from falling out of the wheel. This is an advantage, especially when lacing a wheel. The ‘barbs’ are enough to prevent the spoke tool from falling off and flexible enough not to require extra force to be put in place. Compatible with 10G, 11G, 12G, 13G & 14G spoke nipples Cr-Mo steel, plastic inner Dimensions: 40 x 10 x 10 mm About IceToolz IceToolz is a brand that focuses on both the professional and the (better) do-it-yourselfer in the bicycle industry. But the ordinary cyclist also comes into the picture with handy maintenance products and easy-to-use items. IceToolz is a brand where you can find those things that make your hobby as a cyclist, mechanic or as a bicycle professional easier. IceToolz: the choice of professionals and do-it-yourselfers! What is Cr-Mo? Cr-Mo is the abbreviation of chrome molybdenum steel. A type of steel that is widely used in tool making because Cr-Mo has the properties that make the crank puller impact resistant and rigid. Would be a shame if the force applied to the crank puller is lost in bending the material. Cr-Mo is also widely used in cars, racing cars and motorcycles where the demands on the material are high.