When you need to get your team's attention, you can rely on these Acme Thunderer 660 Whistles to make heads turn. Whether you're blowing the whistle to start a drill or halt a play, you can be sure the sound will be heard thanks to the natural cork ball, which ensures a powerful trill. Great for coaches and refs, these highly durable plastic whistles can be attached to a lanyard or keys for easy access during a game or practice. If you need to command attention quickly, these whistles will do the trick.

Features:

• Injection-molded plastic is lightweight and durable to last through games and practices
• Natural cork ball helps the whistle emit a highly audible trill to get the attention of players or spectators
• Great for coaching, refereeing and lifeguarding, and can be carried and used for safety by young and old who maybe short of breath
• Split ring enables easy attachment to a key ring or lanyard, so you can keep the whistle accessible
• Black finish makes this whistle a low-profile addition to any referee or coaching uniform
• Sold by the dozen