Name: double hole high frequency outdoor survival whistle Specification: 56 x 15mm Thickness: 8mm Material: aviation aluminum alloy Weight: 12g Feature: high frequency double pipe whistle is a good helper for outdoor products. It is compact, convenient and easy to carry. The inner cavity has no bead design, and the water can also be used.
Material: Aluminum Alloy Best Use: Mountaineering,Backpacking,Rock Climbing,Adventures
Package weight: 0.041 kg Product Dimension: 5.60 x 1.50 x 0.80 cm / 2.2 x 0.59 x 0.31 inches Package Dimension: 7.00 x 2.00 x 2.00 cm / 2.76 x 0.79 x 0.79 inches