Review on ECR4Kids Single Tunnel Freestanding Structure Contemporary by Chris Floyd

I wish I had read the reviews before buying because I have the same problem as others. When children climb the edge of the tunnel. .It tips over. A small child can be injured if you are not aware of the problem. There is velcro under the mat that converts it into a velcro attached tunnel that folds over. Unweighted. The tunnel must be made of heavier material or otherwise. The company should review this product as many people are saying the same thing. Otherwise my 2 year old and 8 month old kids love it.