Eris Bifold Doors 120-in x 80-in 3-in Low-e Argon Black Aluminum Folding Left-Hand Outswing Patio DoorThis Eris Bifold Door features a durable low track system, along with double tempered glass that is filled with insulating argon gas. The aluminum material is thermally broken and coated in a sleek black powder finish for added style. With a 3 inch thickness and left hand outswing design, this patio door offers both functionality and elegance. Specification Details Collection Name Bifold Doors Handle Finish Black Color Finish Family Black Hardware