Diving Lobster Stick Pointer Underwater Shaker Noise Grey : Robust step indicator for installation, applied at level, durable and external With a measurement of 15 cm on the bar, attached with spring, carabiner (random) and whistle You can use it to extract from the hole or detect unknown underwater creatures, safer and more environmentally friendly You can also go to classification or making sounds to help someone, you should take into account the attention You can use a simple, clip on the BCD or put in your pocket Great for improving or other underwater sports Specification: Material: aluminum plastic Length: approx. 34 cm or 13,4 cal Thickness: approx. 8 mm or 0.31 inch Whistle Length: approx. 7 cm or 2,76 inch Stretched length: approx. 65 cm or 25,59 cal Carabiner length: approx. 5 cm or 1,97 inch contains: 1 element analysis indicator