Headline says it. If I had a repair operation business going, this might NOT last for years. But ......WHEW..... I'm delighted I paid the approx. $55 (?) for something I need for only 2 / 3 specific projects--then I'm just an average guy again. IF YOU HAVE A site that's nice, flat, water-hose-able-clean cement, this is a terrific thing to have. IF you ever have a plumbing leak and have to at least size things up ... this is a nice feeling that you're not so relatively helpless to get under there and see what you're dealing with. 'have not experienced that BUT, in my case, living near \"nature,\" ... keeping SEALING MICE ENTRANCES with foam stuff ... THAT project was almost FUN--alternative having been using a couple foam camping mattress pads. In fact--for a long project like that, needs a head-holder-upper (I use a wheel-chock triangle) plus a couple of those foam, non blow-up pads...presto...you, too, can have a project get downright enjoyable as you wheel yourself around. Bon voyage !!??!