A coupler is very handy when you need to change similar sized piping tips without emptying the contents of the icing bag. It is made up of a base and ring.
Professional grade for use with disposable and fine line bags
Medium coupler fits larger, popular tips like the 1M & 2D Tips
2 coupler screws per pack
Plastic
MADE in KOREA
NOTE: You may need to trim your piping bag to allow room for the coupler