Replacement Aftermarket belt for 7540106 AUTOMOTIVE ASSOCIATES 215-255 Belt for Reverse Top Width: 1/2 in Weight: 0.15 Height: 5/16 in Length: 23 in inside, 25 in Outside Material: Dry wrapped aramid cord Recommended use: Higher horse power uses and are designed to increase strength and stability and are also designed to have a smoother grip. The material helps resist humidity, high temperatures, oil and cracking