Pack of 3 sliding tube booms, with swivel and swivel and snap clip for attaching the lead. Sold in packs of 3. 300mm long. 
.............................................................................................................................

These tube booms are great for long trace flying collar rigs to keep the trace apart from the main line and avoid those tangles which can cripple your rig. Particularly good when fishing hard on the bottom to anchor the line without tangling but at the same time allow it to run freely backwards and forwards through the tube.