Strong plastic handle with spring steel corkscrew wire and brush end. 9mm dia galvanised spring wire. Cleans debris and fat residue from sink drains, traps and wastepipes. Can also be used to clear other household pipes. Strong plastic handle with spring steel corkscrew wire and brush end. 9mm dia galvanised spring wire. Cleans debris and fat residue from sink drains, traps and wastepipes. Can also be used to clear other household pipes.