This product is poorly made. The levels are twist and lock style, they are very sloppy after being "locked" in place. The construction is extremely thin, check the entire fountain for broken parts when it arrives. The scallops around the bowls look very attractive,  but it takes very little pressure to break them off. Do not expect this product to last beyond 1 season. If you store it outside off-season, place some weight inside the bottom bowl, a gentle breeze will blow it over when empty. Do not waste your money on this product.