The idea is not particularly new but this model has several unique features that we're sure you'll like. Firstly we have given the product more beef in rope size to give it an 'Esthetic Impact' and the larger rope size makes it easier for the little ones to navigate. Rope stretches over time and our model incorporates 'Easy Adjustment' to tighten when necessary. Even better then all that is that we manufacture this product right here in the USA without compromising the price, in fact our price makes this item affordable to EVERYONE as you'll find that we are the best price on the market!