An embroidery hoop (or tambour frame), consists of a pair of concentric circular, square or oval rings. The larger ring has a tightening device, usually in the form of a metal screw. They can be made from a range of materials including bamboo, plastic, metal & wood. We believe Beech wood is the best material due to the consistent nature of the woodgrain, its texture is warm to use and it is strong. Bamboo or soft wood can sometimes used for its low cost but they can be liable to splinter.