We main produce the Running Treadmill,Life Fitness,electric running machine,electric running machines,treadmill running machine FR1204D Double Layer Running Board, Multifunction, Auto Incline Description1. Handpulse, Easy Speed/incline Button on Handlebar for Easy Operation.2. Plastic Side Rails with Rubber Anti-Slip Pad.3. Four Elastic Cushions and four silica gels on Each Side of the Running ...