This Hamilton 9 Ring Paperhanging Brush is manufactured using the best grade, synthetic bristle. Knots are set in rings to give extra strength and rigidity. It features pure grey China bristle for extra softness and flexibility, with 9 insert ring-knots for superior strength and rigidity. This brush is individually hand-crafted for perfect wallpaper hanging and is suitable for smoothing all types of wall coverings. Weight: 1200.0 grams, Manufacturer: Hamilton Acorn Limited.