Easy Application Reduces TreadBelt Wear Reduces Deck Wear Reduces risk of friction surge to your control boards Allows your slide wheels to glide smoothly and reduces noise Use to reduce friction between the treadmill treadbelt and deck, as well as between the Elliptical slide wheels and aluminum rails. Recommended for Spirit Fitness, Sole Fitness & Xterra Fitness treadmills and ellipticals. Product comes in an easy to squeeze tube. Recommend lubrication of your treadbelt is every 3 months. P/N N020001