The Tapered Plug For The Colster Yeti Cup Are A Hollow Silicone Plug Made Of High Temp Silicone Good To Temperatures Up To 600 Degrees F Used For The Purpose Of Powder Coating The Yeti without Any Wrap Around Leaving A Professional Finish Every Time. These Plugs Have A 2.281 Bottom Diameter, A 2.687 Top Diameter And Are 1.000" Long