The only Dog Treadmill thin enough to fit under the bed!

The Dog Treadmill comes in 3 sizes:
Small
Treadmill height: 6 inches
Pet Weight: up to 40lbs
Length: 42" long
Width: 22" wide
Product weight: 55 lbs
Fits under bed: YES!!!
Medium
Treadmill height: 6 inches
Pet Weight: up to 70lbs
Length: 60" long
Width: 24" wide
Product weight: 70 lbs
Fits under bed: YES!!!
Large
Treadmill height: 6 inches
Pet Weight: up to 180 lbs
Length: 84" long
Width: 30" wide
Product weight: 80 lbs
Fits under bed: YES!!!