Choose from a large variety of solitary, double, or triple mobile shades for different amounts of insulation. Measured sizes to the ground of your 15mm recess in the Sekosnap are 800mm x 600mm and 700mm x 1000mm. What dimensions do you recommend I need to buy of 3mm thick perspex? https://jaredafkmm.frewwebs.com/35147213/the-5-second-trick-for-thermal-comfort