This listing is for four traction mats. Each Slide Guides Inc. Snowmobile Traction Mat measures 16 inches wide by 6 feet long. This Traction Mat provides excellent traction and protects your decking from sharp studs. Its unique design includes water drainage channels which allow moisture to escape to prevent snowmobile trailer deck rotting, avoiding the snowmobile trailer bed rot caused by inferior flat bottom mats Slide Guides Inc. The EZ Off Traction Mat has a heavy-duty 3/8 inch thickness for long time durability and horizontal groove pattern for extra grip They have a long life when used with E-Z Off Slides. Traction Mats come with heavy duty stainless steel screws for mounting.