Product description: Medium fits tractor seat backrests 12.5" - 14"H without armrests Made of 600D oxford cloth:not easy cracked, water-resistant,heat-resistant and good breathable performance Non-skid surface,has some cushioning that makes sliding less likely Having pockets on the back of the seat cover for any items you may need while mowing like gloves, tools, rags, pruners,trash bag and such An elastic hem encircles the seat,make it very convenient to install, just take about 10 seconds How to measure: All it takes to measure your tractor seat is a simple steps Measure height from seat to the top of the backrest of the tractor seat to find if the powerworks' cover fit your seat