Security Chain Company SZ1176 Tire Traction Chain Rubber Tightener - Set of 2<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>2 tighteners per bag</li><li>For use with SCC part numbers: SZ435 - SZ441， SZ447 - SZ451， ZT735 - ZT751</li><li>Replace your lost or broken tighteners</li><li>Good idea to keep a backup set on hand</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41kWuhge0VL.jpg" noproxy>