Taiss 490PCS Precision Balls 8 Sizes,Bicycle Bearing Balls 1/2″ 3/8″ 1/4″ 7/32″ por | ago 9, 2026Widely used in:steel balls are Widely used in bicycles,casters,door locks,drawer slides and auto parts,etc. Precision steel ball has high precision, smooth surface, rust prevention, corrosion resistance, wear resistance and beautiful appearance.