Mars Magma Acrylic Pen Blank 3/4"x3/4"x5" BTWPBM1041 (1 pc)
The photo is an example of The blank that you will receive
Mars Magma Acrylic Pen Blank 3/4"x3/4"x5" BTWPBM1041 (1 pc)
BTWPBM1041 
Description: The red sands of Mars are broken with chuncks of molten magma.
Dimensions: 3/4" square by 5" long -- 19mm x 130mm
Transparency: Normal-Low
Material: Acrylic Acetate
Colors: Red, Orange, Yellow
Style: Pebble