Parallel bars question

So im planning on buying some parallel bars and havent found any gymnastics parallel bars that are cheap, and i found these http://www.rehabmart.com/product/folding-parallel-bars-12710.htmlthat are intended for rehab trainning not gymnastics, they can hold up to 400 lbs and I weight 130 lbs, so should I buy or them or do you guys know any gymnastics one that are kinda cheap (below 1k)