L-5 bricklaying trowel trowel plate with sand board Mason tools and hardware tools

Sand frame shar grinding device A-1 foam rubber sheet, long 215mm, wide 135mm and rubber thickness is 8mm 10mm 12mm, panel with metal and plastic. Want to have a detailed understanding of this product, please add QQ:353224314 store, the store will give a detailed answer, thank you!