Materials: Polyurethane Diameter: 53mm, slim Hardness : from 95shoreA( concrete or ceramics) to 100ShoreA( pro street/ asphalt) Price: Rp.150.000/ set Rp.120.000 / set ( minimal order 10set) Special Price: Rp.25.000, -/ pcs ( minimal order 1000pcs) All prices is exclude shiping charges