Smooth drum with recessed edges. Specially designed 1 in opening for ease in filling. Tubular steel handle. Channel steel scraper bar to prevent dirt build-up. Baked on enamel paint. 18 in x 24 in drum holds 185 lb of water. 44 in L x 26-1/4 in W x 18 in H assembled size. Rental.Performance has a scraper bar to prevent clumps of soil from being compacted on the roller drumEasy to operate roller drain/fill plug empties easily and fills with a regular garden hose