I bought this chair 7 years ago for my small 55 lb. pit bull who had a spinal stroke 1 night. It helped to get her going again and she had not used it for 6 years until recently. She is now old and her hind legs starting giving her trouble again. This chair was perfect when she was 6 years old but she's 13.5 years old and it's too much for her little old body to pull around now. I had to buy her a $500 custom made aluminum one. You may come by for a fitting to make sure it will work. It's made of PVC pipe and I painted it blue. You will need to purchase your own harness and I will show you how to attach the clips to it, I have some spares left. Asking $100. 284-5675 Vista/Overland area in.