Excellent fit, have 36-39 inch for our 235/80R22.5 tires. Seems solid and has so far stayed in place in 40mph desert winds, although we couldn't reach to attach the rear strap to the back dollies. My only complaint is the color. In the sales photos they look brown at the bottom and beige in the middle which would have been perfect for our camper. However, they are yellowish brown below and cream colored in the middle. I didn't want white. But my husband is happy with the white as it reflectsβ¦