The Ashford Classic Fine Hand Carders are 108 Points Per Square Inch (PPSI). Suitable for Cotton, Cashmere, Angora and other super fine fibers; as well as and short staple fibers. These hand carders are lightweight and easy to use. The wire teeth are coated with a protective coating. The flexible rubber backing allows for long life. The handcard have a slight curve to allow for easy carding. The ergonomic handles allow for a comfortable grip. Made of unfinished Silver Beach hardwood in New Zealand, by Ashford Handicrafts. Hand carders are used in pairs to prepare fiber or blend fibers or colors in the traditional way. They produce small rolags ready for spinning. Specifications: - Wood paddle measures: 8 inches x 4 5/8 inches (205mm x 118mm). - Carding teeth area measures: 7 1/8 inches x 3 5/8 inches (182mm x 92mm). - Teeth are 108 points per square inch (PPSI). - Tine height: 1/2 inch (12mm). - Weight: 18 oz (510g) for the pair.