The Faithfull Plasterers Scratching Tool with 7 prongs. The wire prongs are designed for scratching or keying interior and exterior plaster or render coats to ensure good adhesion of the second or finishing coat. Features: Used for scratching a good keying surface on plaster or render to ensure good adhesion of the 2nd or finishing coat Specifications: Dimensions: H:28.5 x W:2.1 x D:14.9 cm Colour: White Guarantee:5 years Material: Metal Model Number: FAIPST