The Invacare Walker is a two-button folding walker. The lightweight WalkerBox® easily fits the two-button folding walker. The WalkerBox® fits between the two buttons so you can maintain control.  It is secured with two plastic removable straps. They are easy to install and remove from the slots provided. The WalkerBox® will not interfere with the folding of the walker and can remain secured to the folded walker. It is extremely lightweight - yet strong and durable. It is the best affordable, unbreakable, and convenient product you can ever add to your walker.