These slides are stronger than the Little Tikes water slides. When I (5'6, 135 lb) climb up onto the slide it responds more similarly to a commercial slide and doesn't partially collapse around my weight. I had a work get together with my coworkers and their kids. Only one adult on the slide at a time, but often 4-6 kids sliding and climbing with a dozen kids total ranging in age from 18mo-11 years. The slides themselves are generously wide and we frequently saw two kids wrapping their arms around each other to go down a single lane together. My almost two year old figured out how to climb up the "stairs," but preferred walking up the slide to get to the top... Absolutely wonderful purchase!