Be prepared for anything with the DJ Calls Pekin Lake Gadwall Duck Call. This call produces the blat sound of the Gadwall duck and is easy blowing with great sound.The tone can be changed by blowing harder and or closing your hand over the shell. Measures 6 inches long. The Pekin Lake Gadwall shell is made out of walnut with a maple bell and the tonal parts are made of cedar for moisture resistance. DJ Calls has more thatn 27 years of experience to ensure quality and performance all rolled into one.