Pouch included. Over pressure release valve. Easily attachable to BCD with swivel clip at bottom. Material: 210 Denier Nylon. Size: 15 cm x 180 cm. Can be inflated in three ways: 1. Oral inflation on 2. Inflate with BCD hose 3. Use Duck-bill. The Velcro at the boom can hold the signal tube when it is deflated and rolled.