This window replaces the one the Kayfun [lite] originally comes with.

[ice]
Made from Poly(methyl methacrylate) (PMMA), better known as acrylic glass. This material has a beautiful “iced” finish that turns crystal clear when in contact with e-liquid.

WARNING: PMMA is not resilient against aggressive e-liquids. Flavours that contain menthol, citric acid (sour flavours), candy banana, candy cinnamon, etc can attack the window material and cause it to crack.