Hate to admit I need it, but. . .
This is an incredibly useful and extremely ingenious device!  At first glance it might seem to be one of those items that should be hawked on television, however it is sturdily built and does exactly what it's supposed to do - add an inch or so to the waist measurement of tight pants.  I've only tried it on jeans but I'm sure it does its job equally well on cotton, gabardine and wool.
Rating: 4 stars