Clear Tempered Glass you will get the amount that is about 12" x 12" amount that are broken up in random pieces. close to 3 pounds.
The piece were glue on back when broken so it helps to keep them together , that way it is easier to add to you mosaic design. In shipping it will be stacked one on each other to ship it will not be on a sheet. Shapes and Size will very a little from the picture.