7 inch high and 30 inch diameter ring is 3/16 inch thick steel and has a 1 inch formed flange around the top for extra rigidity. 15 x 20 inch grate offers 300 sq. inches cooking space and is 1/2 inch steel rods welded on 1 inch centers. Easy flip-up grate has cool spring handles. "TB" = tilt back hinges on 1/2 inch dia. staple rods for easy clean out. "SAS" = Three spade anchor stakes for stationary mount. Painted with a non-toxic, heat and rust-resistant black enamel. This item is perfect for any Commercial Grade Park or Residential use.