Treadmill Belt Information Type: Standard 1-Ply, Premium 2-Ply, Commercial 2-Ply Profile: Golf Ball Pattern Top Colour: Black Bottom Colour: White/Silver Lubrication: Silicone or Wax Main Features: Non Stretch Non Edge Curl Elongation at 1% Permanently Anti static High Grip Top Surface Low Noise Low Friction High Flexibility Very Affordable Fast DeliveryDifference Between Belt GradesDifference between the Standard 1-ply, Premium 2-ply and Commercial 2-ply Treadmill Replacement Belts:Standard 1-ply Treadmill Replacement Belt is a 1.6mm thick belt with a 0.2mm underlay. Recommended average usage up to 1 hour a day, 3-5 times a week.Premium 2-ply Treadmill Replacement Belt is a 2.3mm thick belt with a 0.8mm underlay. Recommended average usage up to 3 hours a day, 3-7 times a week.Commercial 2-ply Treadmill Replacement Belt is a 2.8mm thick belt with a 1.5 mm underlay and a lot tighter weaved belting. Recommended average usage 6 – 12 hours a day.We recommend using the Premium 2-ply replacement belts as they are quieter and made of tougher material, offer more cushioning and will last a lot longer.We recommend using the Commercial 2-ply Replacement Belt for Commercial Situations like Gyms, Personal Trainers, Apartment Blocks and High Usage Treadmills.