I absolutely loved these balls. We live in Canada and it is WINTER.... so I think it was completely our fault that these balls only lasted a couple hours. For Christmas, we rolled these balls to our grandkids houses to have an outside socially distance Christmas morning. We had a riot rolling them around in the snow and bowling for Oma and Pappy and Mom and Dad. It was well below freezing and I don't think the balls could handle the cold. The balls were fine when just the kids were playing.... but once the adults started playing, a swift kick and the balls had a hole in them... a big hole... so the fun was over. I still wanted to order more of these balls and bring them to the grandkids with a "no adult play" policy and I am sure they would survive. Great fun! I want more!!!!