שריקת הישרדות אש

description:
The clear playing whistle is very suitable for use in the low-pitched range, with a lower pitch.
High impact plastic, assembled by hand, to ensure the quality and consistency of the shadows.
The dual-frequency design can emit three sounds.
Techniques for performing resistance design.
Integrated design, sturdy and reliable.
Specifications:
Size: 7.2cmX2cm