VEVOR Dog Wheelchair for Back Legs, Adjustable 2 Wheels Pet Wheelchair, Lightweight Dog Cart with Shock-Absorbing Wheels, Mobility Support Wheel Chair for Disabled Injured Dogs up to 22lbs , X-SmallLightweight Aero-AluminumThick Sponge Leg RingQuick and Reliable ConnectionFor Various-Sized DogsEasy to Guide, Easier to AdaptScratch-Resistant FrameWheel Size: 5.5 in,Adjustable Height: 7.2"–12.6" (185–320 mm), 7 positions,Item Model Number: SS1-01,Adjustable Width: 5.7"–8.3" (145–210 mm), 6 positions,Recommended Pet Weight: Max 10 kg / 22 lbs,Net Weight: 0.87 kg ±3% / 1.92 lbs ±3%,Adjustable Length: 11.4"–15.5" (290–395 mm), 5 positions (suggested use 1–3 positions),Main Material: Aluminum Alloy