Oajen 2" heavy duty soft wheel caster with M8 - 1.25 x 20mm, metric, pack of 4 Oajen 2" heavy duty soft wheel caster with M8 - 1.25 x 20mm, metric, pack of 4. 110 lbs rating per caster. Soft wheels are designed for hardwood floor. 2-3/8" mounting height. 4 casters / pack. Made in Taiwan.