Replacement Aftermarket belt for 1040 GILSON 10-417A-03 Belt Top Width: 1/2 in Weight: 0.2 Height: 5/16 in Length: 30 in inside, 32 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