We are certain that our belts are the most resilient -- so certain that we will send you twenty free belts to test. Put them and our competitors' belts of identical size and durometer on the same conveyor span. After 3 months cut off all the belts and measure their length. Ours should demonstrate their resiliency by being about 1/8" to 1/4" shorter. Conveyor manufactures often use this test. Now you can too! Greater resilience means more drive, longer life, and less downtime. Insist on Urethane Belt.