Lightweight Plein Aire Frames Have Timeless Style! Cardinali has taken the traditional plein aire frame and made it better. Instead of heavy wood and plaster, they use lightweight renewal core, a material known for its durability. As a result, the frames are light yet strong and rigid, so you can easily hang and install the frame by yourself. Cardinali Plein Aire frames compliment all art, from traditional landscapes and portraits to modern abstract paintings. The 3" wide moulding has a raised edge and an inner groove that adds emphasis and directs the eye toward your artwork. Each frame has a generous 1/2" rabbet depth that can hold a 3/4" canvas with the use of offset clips (sold separately). Cardinali Open Back Plein Aire frames are crafted to provide the timeless plein aire profile that you love at an affordable price. This elegant frame is sure to enhance the beauty of your art! These frames make for excellent gifts for any level of artist looking to frame their artwork or outdoor landscape paintings!