It is very easy to install. Just pay attention to the alignment of the grooves from pulley to pulley when you fit it. Timing belts with fiberglass stretch cords provide strength,durability and resistance to elongation. uxcell S3519 Rubber Tiing Belt Synchronous Closed Loop Tiing Belt Acoeitl 150XL037 Timing Belt Rubber Pulleys Geared Drive 10mm Width 75 Teeth Closed Loop Flexible Good Tension Prevent Slip Accurate Position Easy Replace for Belt Disc Tabletop Sander 2Pcs Black : : Industrial & Scientific About this item High-Quality and Durable Timing belt with nylon tooth surface for quieter operation and wear resistance. Work great on belt/disc tabletop sander. Easy to replace with a bit of dismantling the covers,fit perfect for your rigid planer. Material:rubber Color:black Teeth Qty: 75 Teeth Pitch: 5mm/0., 19 Belt Width: approx., 10mm/0., 375 Belt internal perimeter: approx. There are teeth on the interior of the belt. PowerGrip Timing Belt 1/5 Pitch (0.200/XL) - 3/8 Wide - Price: $7.31 Number of Teeth: 75; Length: 15; SKU: 9257-1309 Reduce the chance of belt slippage. 150xl037 Timing Belt Acoeitl Rubber Pulleys Geared Drive 10mm Width 75 Teeth Closed Loop Flexible Good Tension Prevent Slip Accurate Position Easy Replace For Belt Disc Tabletop Sander 2Pcs Black 75 Teeth Rubber Belt