2' x 2' Mirror Ceiling Tiles - Box of 10 1 mm Thick Acrylic Mirror Panel 2' x 2' Lay-In Panels for regular 15/16" Ceiling Grid - Should NOT be glued to wall or ceiling Lightweight and Glassless - Very Safe Removable Film on face to Protect Mirror finish during shipping and install Easy to cut with Simple Utility Knife - Score and Snap