Best Friend Mobility SitGo Dog Pet Wheelchair Revolution ts finally here! The SitGo, Best Friend Mobilitys revolutionary pet wheelchair that allows our best buds not only to get up and go but also to sit and relax even in their wheels! Still made of the same durable, lightweight materials as our rear leg and quad support wheelchairs, the SitGo is the first of its kind to allow for voluntary sitting and lying down. And, because the rear can be lowered, getting your dog in the wheelchairespecially if he or she is big and heavybecomes an easier, no-lifting operation. See size chart for sizing information