If your pet has strong forelimb strength, a Rear Support Dog Wheelchair is recommended. If your pet has moderate forelimb strength, the Full Support Dog Wheelchair is recommended. And, if your pet has minimal or no forelimb strength, a Full Support Wheelchair is recommended. Often, when weakness starts in the front legs, it signals a progressively worsening condition and your pet may be a better candidate for a Full Support Wheelchair. Please see Evaluating Your Pet.