I am all set for the beach with my swimsuit on and my new beach balls all blown up. I know the last ones I got didn't last long since I love to sit on them. I was told that these are very sturdy, but I should test them out before we go. I slowly sit on them with my big booty and they don't pop! Sadly they are deflating slowly the more I sit down. I switch between the two, bouncing my big buns on the balls. I eventually start to blow up one of the balls to see if it helps. I mean maybe I didn't seal it right before. I sit back on it and it still starts to slowly deflate. I give up! I guess w... Show more