Kentek’s laser safe window protection shades and blocks are made-to-measure for virtually every shape and size window. Shades come on clutch-driven roller assemblies and will retract quickly and neatly. Kentek’s removable window blocks can be mounted to surfaces with supplied Velcro®, magnets, grommets, or snaps. Acrylic and glass windows can be added. Windows are for use with any laser application.