Have a better bird watching experience with this bird call. The squeaking sound produced attracts the curiosity and attention of birds. To use: By holding the wood part in one hand and the brass part in the other, twist the two parts together. Easy to maintain: Keep your Bird Call dry. Moisture can dampen the sound. To refresh the sounds, allow to dry, then remove the brass screw, with a little sandpaper. Then add a small amount of the powdered rosin contained in the cube.