These rubber boots replace the protective rubber boots on your Acclaim, Aladdin, Alpha, Allure, Avail, Aventa LX and Aventa II towbar. For replacement, you will need to cut off the old boots and clean the legs using a cleaner like carburetor cleaner. Fully extend the leg, remove the triple lug from the tow bar by removing the bolt on it. Gently, stretch the replacement boot over the end of the bar where the lug attached and position the boot all the way down to where it goes up against the release latch assembly and secure that end with a zip tie. Pull the leg back out and apply white lithium grease to the inner leg then actuate the release handle, letting the leg fully retract. Align the other end of the boot so its in place and zip tie in place. Reattach the triple lug, then, repeat on the other leg.