Brand: National Model: Commando AT4S Size: 275-60R20 275/60-20 275/60R20 275/60/20 275-60-20 275 60 20 2756020 Tread Depth: 12/32 Treadlife: 55,000 miles Season: All Season Performance: All Terrain Car Type: Truck/SUV Load and Speed Rating: 115T Speed Rating Description: Speed Rated Up to 118 mph Section Width: 275 Aspect Ratio: 60 Rim Diameter: 20 Production Year (DOT): N/A