This is for 1 amber piece Found On Lake Or River Beach. This has either a number 6 or 9 embossed on one side . I find all my pieces on the lake or river beaches. I DO Tumble some in a tumbler if they don't have a frosted look. So I consider it man made or faux sea glass. I LOVE TO SEE WHAT MY CUSTOMERS CAN DO WITH MY RECYCLED GLASS! Please look at the pics for an exact description of this item and get an exact measurement. I do not oil these and they are dry in the pics. This measures 50X32mm with thicknesses of 9MM. These are great pieces for jewelry or art work. You decide.