The 4 sq. ft. x 2 sq. ft. poly lumber easy set garden bed assembles in minutes with no hardware or tools required. Simply connect the four corner notches and set the bed in place. The material is extremely durable poly lumber that will last for years and years and will never rot. For deeper roots you can easily stack a second bed on top without the need of any attachment hardware. Our poly lumber bed lets you focus on gardening quicker. Color: Black. Material: Resin.