Refers to the number of times the test paper can withstand reciprocating folding under a certain tension. This fabric Lift Chair is the ultimate 'easy' chair: The fabric lift chair is easy to look at, easy to use and easy to love. The fabric lift chair feature gives you extra stability and support when it`s time to get up. Add generous padding for comfort and individually wrapped drop-in coils for durable support. And the covering materials is good quality fabric. Fabric Lift Chair,Lift Reclining Chair,Electric Riser Lift Chair,Electric Lift Reclining Chair Kaifeng Lanwei Smart Home Co., Ltd , https://www.sofa-recliner.com What is foldingendurance?