The Range: Ex Fine - 0.4mm x 1.1mm Fine - 0.5mm x 1.3mm Medium - 0.7mm x 1.4mm Large - 0.9mm x 1.6mm Features: Each packet contains approximately enough silicone for fifty rigs Black and clear silicone Durable Pre-cut into two lengths Pole Float Silicone comes in four different diameters and consists of two pre-cut sizes of silicone tubing in each pack. Supplied with both black and clear silicone, you can use the black with carbon stems and the clear for wire.