- Material: Aluminum Alloy<br />- Length: 9cm<br />- With keychain for easy carrying<br />- Contains 5 whistles per pack<br /><br />                                                                                                                                Dimensions: 3.50 in x 0.55 in x 0.55 in (8.9 cm x 1.4 cm x 1.4 cm)<br />Weight: 0.92 oz (26 g)<br /><br />