Sports Stuff 48" SportTube

[superbenk]

My kids aren't really into the O'Brien Super Screamer flat disc tube I got yet, so I was thinking of getting a cheap basic tube they can use to get more comfortable with tubing on for awhile. Anyone have any opinions on this tube, Sports Stuff 48" SportTube:

http://www.amazon.com/SportsStuff-5...Feet-Sportstube/dp/B000KD8XFQ/ref=pd_sbs_sg_3

Also considering this Kwik Tek Blast which looks similar:

http://www.amazon.com/gp/product/B000FE7J5U/ref=ord_cart_shr?ie=UTF8&m=AP9TLT2LX6QXY