End Plugs 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 Plugs, for 5/16" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=133 Fits inside a 5/16" inside diameter tube.<br /> End Plugs, for 9/16" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=245 Fits inside a 9/16" inside diameter tube.<br /> End Plugs, for 5/8" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=246 Fits inside a 5/8" inside diameter tube.<br /> End Plugs, for 3/4" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=247 Fits inside a 3/4" inside diameter tube.<br /> End Plugs, for 1" Inside Diameter Tubes http://www.skylighter.com/end-plug-1-inch.html Fits inside a 1" inside diameter tube.<br /> End Plugs, for 1-1/4" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=250 Fits inside a 1-1/4" inside diameter tube.<br /> End Plugs, for 1-3/8" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=251 Fits inside a 1-3/8" inside diameter tube.<br /> End Plugs, for 1-1/2" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=252 Fits inside a 1-1/2" inside diameter tube.<br /> End Plugs, for 1-3/4" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=253 Fits inside a 1-3/4" inside diameter tube.<br /> End Plugs, for 2" Inside Diameter Tubes http://www.skylighter.com/mall/product-details.asp?id=254 Fits inside a 2" inside diameter tube.<br />