steel grit:G10, G12, G14, G16, G18, G25, G40, G50, G80, G120 Hardness: GP / GL / GH ... , Aluminum shot, etc. Details of Steel Grit:G10, G12, G14, G16, G18, G25, G40, G50, G80, G120Hardness: GP / GL / GHGP: HRC46 ... %5.TAA Steel grit available:6. Packing picture: steel grit G16