End Caps from Skylighter.com http://www.skylighter.com/ Pyrotechnic Supplies shipped everywhere in the US including end caps, wood plugs, paper end plugs, cup sets, mortar plugs and fireworks caps. End Caps, for 1-7/16" Outside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=292 End caps fit over the end (outside) of a tube. This cap fits a 1-7/16" outside diameter tube.<br /> End Caps for 2-1/4" Outside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=294 End caps fit over the end (outside) of a tube. This cap fits a 2-1/4" outside diameter tube.<br /> End Caps for 2-3/8" Outside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=295 End caps fit over the end (outside) of a tube. This cap fits a 2-3/8" outside diameter tube.<br /> End Caps for 2-1/2" Outside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=296 End caps fit over the end (outside) of a tube. This cap fits a 2-1/2" outside diameter tube.<br />