Clouds 1 lenses measure 23 ¾" x 47 ¾" and are .045 mils in thickness. Our lenses drop into a standard 2’ x 4’ fluorescent light frame. If your light fixture is smaller, our decorative light lenses can easily be cut with a utility knife to fit your existing light frame. Our panels are rolled to reduce shipping costs. The decorative lens has a bit of memory, so when you receive your lenses promptly remove them from the box and lay flat until installation. If you store them in the box too long and they are curled, lay them flat to rest. Your panels will flatten out, and if you don’t have time to wait, our spring clips will hold them flat in the light fixture’s frame. Our lenses have clear protective sheeting on the back to keep the panel clean before installation. Peel off the clear plastic sheet before you install your lenses. Regular cleaning with a damp cloth will keep your new panels clean and bright. **NOTE: Decorative Light Lenses are a custom item and cannot be shipped overnight, 2nd day air or 3 day select. Please select only standard ground shipping via UPS when ordering. Please order in advance as there is a 7-10 day turnaround on each order.