Nice Combination: you will get 12 pcs heavy duty castor wheels and 24 pcs screws, really a nice combination to use and replace in daily, also enough for sharing with people in need Detailed Size Information of Caster Wheels 2 Inch: wheel diameter is about 2 inches, thickness is about 0.8 inches/2.03 mm, small and portable Long Service Life: mainly made of PP plastic material, small wheels for projects are wear resistant and firm, not easy to break or wear, and anti rust, which can you for a long time Nice Bearing Capacity of Small Caster: the maximum bearing load capacity of one wheel is about 15 Kg/33 lbs and the maximum bearing load capacity of four wheels is about 99 lbs based on three wheels (the force will always be uneven), please understand Versatile Application: wheel casters are suitable for small equipment, small machinery, shelves, , furniture and so on, also safely applicable to concrete, tile, carpet and wood floor surfaces Owing to nice material, our wheel attachments for furniture are and they are also easy to store without occupying much space. These 2 inch casters for hardwood floors adopt red and silver color, coordinated with your furniture style, and can be practical presents for family, relatives, neighbors, mates and more. Colour:Red Material:Plastic Size:about 2 inches in wheel diameter Package Contents: 1set * Mini casters