professional 3 pcs cr-mo 1/2&quot; 17mm 19mm 21mm alloy wheel impact nut socket set<br /><br />? specification<br />color:gold， red， blue<br />weight:746g<br />size:1/2 inch drive，they are 17mm，19mm，21mm teflon protective wheel cr-mo socket<br />each length:77mm<br />material name: chrome vanadium steel<br /><br />? feature<br />1.100%  and high quality.<br />2.protects car wheels &amp; bolts against damage.<br />3.protective material is teflon， not plastic.<br />4.corrosion: hardened， tempered and anodized<br />5.hard wearing nylon sleeves on the outside of the sockets protect the wheels<br />6.equipped with a convenient storage box<br />7.different colors for easy identification<br /><br />? note:<br />1.we provide clear pictures， measurements where possible. please check as much as possible to make sure the item is the one that you need.<br />2. please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)<br />3. instruction is not included.<br /><br />? package included:(3pcs)<br />1 pc 1/2&quot; 17mm teflon protective wheel cr-mo socket<br />1 pc 1/2&quot; 19mm teflon protective wheel cr-mo socket<br />1 pc 1/2&quot; 21mm teflon protective wheel cr-mo socket