Crafted from aerospace-grade aramid fiber

Even the reeds are Ultem so you can heat treat a whistle to make it your own

SIZE WIDTH (CM) WIDTH (IN) S 46-50 18-20 M 50-54 20-21 L 54-58 21-23

---------------------------------------Completely machined from a solid block of Ultem®Original government use unknown

and a folding hook for secure storage when not in use

Stealth RFID Electronic Pouch outdoor Crafted from aerospace-grade aramid fiberVery Limited Stock This pouch was designed from the start at the request of a group of high tech professionals that needed to completely shut down electronic communications devices (Cell Phones, RF ID Cards, key fobs) during sensitive business meetings. Our design and communications staff teamed with their engineers to develop the "Stealth Electronics Pouch". The Stealth Electronics Pouch Is made of ballistic nylon material over Stainless Steel