Two 2.5 and two 3 inch purge plugs for back purging stainless tubing. They are made of a non-toxic high temp silicone and can handle temps up to 600 degrees F. They have 1/4 inch brass hose fittings. Stainless bends not included. Made in York, PA. Any questions please ask. Free S/H. Red – Small End: 2.125″, Large End: 2.500″, Height: 1.00″ Purple – Small End: 2.437″, Large End: 2.953″, Height: 1.375″.