Arnold SO-43-4-58 4.10/3.50X4 Tire W/4" Rim Replacement saw tooth tread wheel For hand trunks Measures 410/350" x 4" 2-1/4" offset hub; 10" diameter tire with sawtooth tread 5/8" ball bearing, 2-ply rating, and 350 lb. load rating Replacement saw tooth tread wheel For hand trunks Measures 410/350" x 4" 2-1/4" offset hub; 10" diameter tire with sawtooth tread 5/8" ball bearing, 2-ply rating, and 350 lb. load rating