Usage Tips:Drive Belt Clutch Belt material: Drive belt is made of excellent quality material, it's sturdy and in use, a great replacement belt for the old. This is a great drive belt for your kids family or factory go-Kart.High performance: Oil and heat , high mileage and reliable performance. According to factory specifications, a great replacement belt for the old or worn one.REPLACES for COMET 203785 203785A AND 12346COMMONLY USED ON 40 AND 45 SERIES -A-VERTER DRIVE SYSTEMS.Easy to install, professional installation is recommended. material: Drive belt is made of excellent quality material, it's sturdy and in use, a great replacement belt for the old. This is a great drive belt for your kids family or factory go-Kart. High performance: Oil and heat , high mileage and reliable performance. According to factory specifications, a great replacement belt for the old or worn one. REPLACES for COMET 203785 203785A AND 12346 COMMONLY USED ON 40 AND 45 SERIES -A-VERTER DRIVE SYSTEMS. Easy to install, professional installation is recommended. Item Number: 203785 203785 123456 colour:Black Material:rubber Package Contents: 1 x Belt Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.