Color: Blue Size: XS for 3-15 lbs VET-RECOMMENDED REHABILITATION SUPPORT: Dog wheelchair for back legs is designed specifically for pets with hind leg disabilities (paralysis, arthritis, or injury) but strong front limbs. The walking pets dog wheelchair encourages movement, prevents muscle atrophy, and helps restore your pet's emotional well-being by giving them the freedom to walk and socialize again UPGRADED 1.5MM THICKENED FRAME FOR STABILITY: Pee and Poop Friendly! Unlike standard 1mm frames found in other dog carts, our dog wheelchair is constructed with 1.5mm thickened aluminum tubes. This heavy-duty reinforcement prevents bending or tipping during outdoor use, providing a stable and secure foundation for your pet to run, play, and explore terrain with confidence LIGHTWEIGHT DESIGN FOR EFFORTLESS WALKING: Small dog wheelchair for back legs weighs only 1.6 lbs, the frame is robust yet ultra-lightweight, ensuring it does not add burden to your dog's front legs. The specialized foam wheels are durable and shock-absorbing, allowing your pet to maneuver easily on grass, pavement, or indoors without getting stuck MULTI-DIMENSIONAL PRECISION ADJUSTMENT: Engineered for a custom-like fit, this mobility aid offers 5 adjustable lengths, 6 widths, and 7 heights. It specifically fits small dogs with a chest width of 16"-22", back height of 7"-10", and weight between 11-26 lbs. Please measure your pet strictly according to the size chart before purchase to ensure comfort EASY ASSEMBLY & PRE-USE GUIDANCE: The split-frame design is easy to assemble and disassemble for storage. Note: Most pets need 1-2 weeks to adapt to the wheelchair. We recommend short practice sessions with treats to help your dog get used to the new "legs." SIZE TIPS: Dog wheelchair for back legs is designed according to the size of the dog's body, the weight of the dog is not the most important. Please refer to the size diagram of the dog wheelchair product before purchase, and then compare the relevant size of your dog.