It is the Acrylic Frame, which gives an elegant atmosphere to the environment in which it is used and makes your advertisements easily noticed. The frames are ideal for high-traffic storefronts.Double-sided clear frames hold 11″ x 14″ signs on glass, doors, or windows with four strong suction cups. Clear window frame is made of two 0.12 inch acrylic. Clear clips hold the acrylics firmly together. You can easily change your signs from the sides and top of the display. You can change the sign on the wall, without having to take the frame off the wall. No tools are required to set up. 4 suction cups included in the pack. Clear acrylic frames are made of the finest materials while providing the highest level of quality and durability. This sign holder features clear anti-glare acrylic material that keeps your signs safe from stains, scratches and tears and lets the entire of a sign be viewed easily. Clear sign holders are great for images, brochures, advertising pamphlets etc. It is versatile, serves a lot of purposes, and can be put in many different places. It’s perfect for use at shop window, store entrances, restaurants etc.