Large 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-176 lbs Running Area-71"L x 16"W Speed Range-1 - 10 MPH Features-Gradual Start, Remote Control, Incline Adjust, Enclosure.Gradual Start easy for dogs to adjust to using. Remote Control-easy too use. Lowest step on height in the industry. Manual incline, 0.6mph to 10mph 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 71"x16"w. Max Weight 176 lbs Running Area 71″L x 16″W Speed Range 6 – 10 MPH Unit Weight 137 lbs Unit Total Dimensions 90″L x 24″W x 16″H Features Gradual Start, Remote Control, Incline Adjust, Enclosure Shipping Dimensions 92″L x 26″W x 22″H – 240 lbs – On Pallet Warranty 1 Year Manufacturer Warranty