Product Detail Patented, push-button locking system. Tubular polycarbonate handle. 6" roller bearing semi-pneumatic wheels. Chrome plated solid steel wheel guards to protect loads. Chrome plated solid steel sliding base lock. . The "Remin Tri-Kart 800 Equipment & Luggage Hand Cart with 300 lb. Capacity." is best product for you. We recommended Remin Tri-Kart 800 Equipment & Luggage Hand Cart with 300 lb. Capacity.