Here we have a mallard duck call with a dymondwood barrel and a acrylic insert. the insert is a insert of my own dezine. These calls have my Mrs. h insert. The inserts have a o`ring seal, so you will not have any air leakage. These calls have a great duck sound, from the feeding chatter, the high balls of the mallard hen. These calls are also great looking calls at a great price. Pick you one out of the many colors and see for your self, how great these calls sound.