I highly recommend this if you need one.My son has one because he has Cerebral Palsy. I always bought his things he needed  Wheelchair Equipment Companies and paid outragous prices for the items !!
But when I found out that Wayfair. Com had some of things my  son needed for just a third of the cost. I rarely use Handicapped Equipment places to get my sons needs now. I come to Wayfair.com now.