Oajen 2" heavy duty soft wheel caster with M10-1.5 x 25mm, metric, pack of 4 Oajen 2" heavy duty soft wheel caster with M10 - 1.5 x 25mm, 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.