12 Piece Locking Drain Rod Kit – 10x 920mm Rods Worm Screw & Plunger UnblockerThe Lock Rod Drain Rod System (patent pending) comprises robust, durable and flexible polypropylene rods with superior interlocking fittings. Double worm screw breaks up obstructions and the plunger creates pressure build-up and forces obstructions to clear. The rods can be rotated in either direction and will remain securely attached. Knurled screw connectors provide an enhanced grip and tool-free connection. Includes: 10 x 920mm interlocking rods1 x 100mm rubber plunger1 x 50mm double worm screw. t0960