Ocelco standard anti-tippers for wheelchairs fit standard frames for E&J, Theradyne, Tuffcare, Hoyer and others with a kick tube height of 3” to 5”. Thepush-button design slides over the kick tubes, and held in place by push buttonafter inserted in the placed holes. Ocelco also carries a clamp-on style designwhich fits over the kick tubes and is tightened on with a bolt and nut. Theanti-tippers products will either have a wheeled end or a bumper design. Also in our product line you can find rear wheelchair anti-tippers, front anti-tippers, and multiple designs of tipping prevention for the front of your wheelchair. If you have any questions please contact our Customer Service at 800-328-5343 and one of our representatives will be happy to assist you.