To use, simply push straight onto the copper tube (use pipe inserts for plastic piping). The Speedfit is reusable and removable, and needs no extra tools. For connecting to a boiler, use 1 meter of copper piping. Note that Speedfit is currently updating some of its fittings, so the items received may vary slightly in appearance from those pictured, but are equal to or better in quality. This product comes with a 50 year manufacturer's guarantee (terms and conditions apply).