These A4 sheets of acetate are used as the windows in all our laser kits. On the kits the window film is sandwiched between two frames.
These are sold in packs of 5 A4 sheets
These A4 sheets of acetate are used as the windows in all our laser kits. On the kits the window film is sandwiched between two frames.
These are sold in packs of 5 A4 sheets