Click to expand Tap to zoom Ateco Single Standard size Couplers Set by Ateco Sale $ 0.75 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Couplers will keep your tips attached firmly to your decorating bag, and allow you to interchange similar sized decorating tips without emptying the decorating bag. This is an 2 piece set of 1 couplers from Ateco for standard sized tubes.