Black plastic version of the original and genuine Acme Thunderer, this ACME Thunderer Whistle 558 comes complete with it's famous deep, low tone. Tough and bite resistant means it has longer life than standard plastics.
- Made in UK - 130 years of whistle making experience
- Injection-molded polycarbonate 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
- Waterproof speed pea which doesn't lose intensity when growing wet with saliva
- Unbeatable in strong winds and easily heard because of fluctuating frequencies
- Black finish for low-profile
