Looking for a good whistle? How about the reliable FOX 40 CLASSIC whistle, which also fits on your fingers! LOUD FOX whistles are popular worldwide. This whistle has a volume of approximately 115 decibels, and its distinctive sound can even be heard over street noise, the din of the stands, and more. LOVED BY COACHES AND REFEREES The FOX 40 Classic is considered one of the best referee whistles available. Coaches and physical education teachers in schools use this whistle with great confidence and pleasure. LOVED BY UNIFORMED SERVICES Even uniformed services in many countries use this loud device to call for order or direct traffic. In the US and Canada, it is used as a mountain safety whistle due to its loud sound. WORN ON THE FINGERS This model with an adjustable finger grip fits the user securely and comfortably. The Fox 40® Classic® Fingergrip is designed for referees and coaches of all levels who want every call to be heard. ADVANTAGES: intended for referees and coaches of all sports disciplines has an adjustable finger grip no moving parts that could freeze, jam or break flawless, consistent and reliable 115 dB power will produce a sound audible within a kilometer radius louder than the noise from the surroundings and the loud stands suitable for uniformed services finger adjustment covered with soft, pleasant to the touch and non-slip rubber used by NBA, NFL, FIBA, FIFA, NCAA, FINA PARAMETERS Whistle dimensions: 2 x 5 x 4 cm (W x D x H) Whistle dimensions with handle: 2 x 8 x 7 cm (W x D x H) Color: black Construction: 3-chamber Finger grip adjustment: yes, from 4.5 to approx. 5.5 cm Net weight: 0.031 kg Gross weight: 0.043 kg Packaging dimensions (blister): 8 x 4 x 17 cm Brand: Fox40 Model: Calssic 9909-0008 Type: ballless Material: plastic FOX , founded by Ron Foxcroft, a former renowned basketball referee, is headquartered in Canada and has a sister company, Tri-Foxco USA, based in the United States. Its products are sold in over 140 countries. Its product line includes whistles, whistle attachments, Fox 40 equipment, Pro coaching boards, mouthguards, and marine & outdoor products. Fox invests in new technologies, designs, and machinery, resulting in numerous new product launches each year.