8 mm deep tread depth vs 5.6 mm of other cheap competitors, durable and longer mileage life Full nylon cap ply ( nylon overlay cross entire tread area), significant upgrade from most other products on the market have nylon strips on shoulder area only, add the critical safety ...8 mm deep tread depth vs 5.6 mm of other cheap competitors, durable and longer mileage life Full nylon cap ply ( nylon overlay cross entire tread area), significant upgrade from most other products on the market have nylon strips on shoulder area only, add the critical safety feature! Featured "Scuff Guard" ring on tire wall for better tire side protection 10 ply rated, load range E. Rim width: 6". Designed for trailer use only, no rims included