Reference: 3LK380 Fractional Kevlar Belt • Length: 38 in Outside • Top Width: 3/8 in • Height: 7/32 in • Weight: 0.14 lbs • Replacement for Ariens Gravely Tiller: 901013 - 901018 • Material: Aramid or Kevlar, usually in blue or green color. The kevlar cord construction combine stretch with durability and strength. V-belts 3LK380 are created with an outer rubber impregnated fabric cover that is extremely tough, wear resistant and crack resistant and Synthetic rubber throughout and true Kevlar tensile member. The 3LK380 are very resistant to severe and repeated shock loads. The 3LK380 are great for Lawn & Garden equipment of all types, Ag Equipment and all types of inductrial drives, especially where misalignment clutching or backside idlers are present.