Model	20157
Quantity	5 piece(s) per pack
Color	Black
Material	Aluminum alloy
Specification	Great for sports activities、 traveling use etc.
Other Feature	With ring、 portable for carrying
Packing List	5 x Whistles

Dimensions: 3.46 in x 0.55 in x 0.55 in (8.8 cm x 1.4 cm x 1.4 cm)
Weight: 2.47 oz (70 g)