The ad said that the "Drive Medical Universal Clamp-On Cup Holder For Walker, Rollator, & Wheelchair," is universal, but it wasn't. I have already put in a review or at least I thought I did. I did not even ask for my money back but the seller took it on their own an refunded my money back to me and didn't even ask for me to send it back to them. I still will recommend them to anyone who ask. will buy from them again.