Alternatively, You may dab some toothpaste onto a thick, cloth material like denim and rub it on the stone to make a luster. เครื่องเป่าใบไม้ ดูดใบไม้ ใช้น้ำมัน If you have to shape a tougher rock, go for coarser sandpaper like 80-grit. Understand that coarse sandpaper shouldn’t be applied on comfortable rocks Successfully Submitted (Awaiting Approval)