Mr. Gasket 4510 Flexible Tubing and Strap Kit Safeguards expensive electrical wiring from the damaging effects of heat and abrasion 6 foot length of half inch convoluted black polyethylene tubing can be trimmed to any length and comes with a built in slit for easy wire insertion and removal Six reusable 4 inch nylon tie wraps in matching black complete the installation Kits are available in black red blue and yellow and in quarter inch three eighths half inch and three quarter inch diameters