Middy Tackle Hi Viz Internal PTFE Bushes 18 to 24 (4.5mm) are 100 per cent smooth PTFE, with a full radius and no blunt edges. They are designed to fit inside the first or second section of your top kit. You can then colour-code your set up with your connector. Part of the renowned Hi-Viz elastic and accessories range. These bushes are available in four sizes and you get two in each packet. 1-8 (2.8mm), 6-12 (3.2mm), 12-16 (3.5mm) and 18-24 (4.5mm). (Image shows all four sizes, see below for correct size.) Size 4.5mm.PTFETwo bushes per pack.18-24 elastics.