300mm x 300mm Borosilicate Glass Plate/Bed w/Flat Polished Edge for 3D Printer - 2 Pack Size: 300mm x 300mm x 3mm To print with ABS or PLA, lightly spray the surface of the glass with AquaNet hairspray, then install the glass. 2 Pack of 300mm x 300mm glass plates Flat Polished Edge for safe to handle Designed by GO-3D Print in California