... size of rubber wheels, like 2.80/2.50-4, 6" x 2", 3.00-4, 4.10/3.50-4, 3.50-5, 3. ... 50-6, 4.10-6, 3.50- ... against the B/L.Welcome to your kind inquiry.Quality plastic rim, light weight designCorrosion and rust resistant rimSuitable ... EquipmentEconomic alternative to steel rimmed pneumatics wheelbarrow wheel 4.00-8 High Quality & Competitive Price