Now you can easily pipe two different color icings through one tube for dramatic results. Simply place this two chambered plastic pastry bag insert, filled with different colors of icing, into an ordinary pastry bag (18" size recommended). Use the decorating tube of your choice and pipe as you normally would for stunningly remarkable results. To change tubes, move insert to another pastry bag, or use with a pastry bag set-up with a tube coupler for speedy changes. Bags are 18" long (can be cut shorter, if desired), sold in packages of 10.