Yellow, translucent inner liner for heightened visibility of cut designs during positioning and blasting Double liner format supports center of letters, numbers and designs to help increase production output Excellent resistance to a variety of blast media High adhesion to granite, marble and other stone surfaces Cut designs are easy to see, reducing eye strain and increasing picking productivity Easy release of the white polypropylene liner helps avoid stretching and distortion of design Options available for Tractor Fed (021200-49378) and Slot Fed (021200-49386).