Toy Breed TreadMill. GoPet TreadMills have dolly wheels which provide easy mobility of the TreadMill. They also have a metal eyelet which allows for a toy to be attached, if needed. TreadMills have push button controls which provide gradual increase and decrease in speed. Max Weight-44 lbs Running Area-28"L x 16"WSpeed Range- 1 - 8 MPHGradual Start easy for dogs to adjust to using. Remote Control-easy too use. Lowest step on height in the industry. Small size great for apartment living. 0.6mph to 7.4mph The length of the dog is more important to buying the proper treadmill than a dogs weight. Make sure the running surface is at least 1/3 longer than the dog for the dog to achieve full range of motion. Tread area 28"lx16"w Max Weight 44 lbs Running Area 28″L x 16″W Speed Range 1 – 8 MPH Unit Weight 63 lbs Features Gradual Start, Remote Control Shipping Dimensions 47″L x 26″W x 12″H – 98 lbs – Not On Pallet Warranty 1 Year Warranty