This expedition quality model is exactly what you want when diving in high seas or areas of heavy boat traffic. BIG - 10&'; long with 22 circumference Large enough to greatly enhance diver visibility yet compact enough to carry easily 75# surface lift Baffled bottom for anti-spill inflation Combination oral and BC QD inflator 2" Diameter OPV with pull for manual release Three bands of 3M "SOLAS" reflective tape for improved surface visibility Stainless steel D-ring at top for strobe attachment 20" long lift harness with stainless steel D-ring Elastic chemical light stick holder at top Includes 6.5" X 14" mesh carry pouch with grommets for backplate attachment (HL085) Mounting hardware is not included (p/n HL510)