Features:
This 90 piece set includes 45 single tube and 45 double tube emergency whistles. It is ideal for large groups, outdoor events, sports teams, and emergency kits. This whistles bulk pack provides ample supplies for team members.
Made from aluminum alloy, these metal whistle items are rust resistant and waterproof. Built to withstand rugged outdoor conditions, they provide emergency whistle survival loud signals when needed in tough environments. Sturdy set.

Specifications:
Material: aluminum alloy
Color: multicolor
Size:
Single tube: 1.85 x 0.35 x 0.35 inches/ 4.7 x 0.9 x 0.9 cm
Double tube: 2.2 x 0.59 x 0.31 inches/ 5.6 x 1.5 x 0.8 cm

Package includes:
45 x Single tube whistle
45 x Double tube whistle

Notes:
Manual measurement, please allow slight errors on size.
The color may exist a slight difference due to different screen displays.