ACME 577 FINGER GRIP Whistle Colour:Black it has a larger lens

it has a larger lens for improved visibility

This versatile piece of equipment can be used for core training

while adjustable towelling and elastic straps ensure a secure

and postural alignment

Product Code: HJ4590-456

ACME 577 FINGER GRIP Whistle Colour:Black it has a larger lensAcme 577 Thunderer features an large chamber with a high quality cork pea. low pitch 115dBA. The 577 Thunderer is suited to large sports grounds as the deep note will travel for extreemly long distances even with high background noise. Also features a fully adjustable brass fingergrip. 115dBA Blow rate required 4 Blow sound 2 Blow tone 5 Product Code: H2ACME577