Rubber-Cal's Treadmill Equipment Floor Mat is a 3/16 inch thick recycled rolled rubber mat that is available in 2 sizes: a 4ft x 6.5ft and a 4ft x 7.5ft and is perfect for a variety of applications. Being that this material is made of 100% recycled rubber, this mat is a ecologically responsible product. This product is excellent for either indoor or outdoor applications due the high contents of EPDM (i.e. a UV/Ozone resistant elastomer) found in the recycled tire rubber. Recycled rubber is a superior material when trying to reduce noise, contain vibration, and absorb shock from treadmills and workout equipment. This product is specifically manufactured for durability and is designed for either residential or commercial applications. Moreover, the space age polyurethane based binder used during manufacturing process enhances the anti-fatigue qualities found naturally in rubber. Each mat is fabricated from thousands of rubber granules and offers superior underfoot comfort and support along with the resilience to cushion the shock of running, exercising, walking and standing. One of the biggest concerns commonly associated with rubber matting is the installation. This mat weighs roughly 30lbs in a 48 inch x 90 inch roll and generally stays down under its own weight, especially after putting the treadmill on top of it; therefore there is no for permanent adhesives. This mat will make running on a treadmill at odd hours possible by reducing noise and vibration both in the room and the adjacent areas of the home or apartment.