The Bluestorm BSJ - 9120 is a small and lightweight, waist belt type inflatable personal floatation device (PFD) that is designed to aid shore anglers in swimming after having fallen into the water. This PFD comes equipped with a Hulky Roberts HR-6F inflator that senses water and automatically inflates the air chamber. Note - As a waist type PDF, the BSJ-9120 is not intended for boat fishing as it does not come with an inversion function. This PDF should not be used in bad weather, and is not recommended for use by those who are not good at swimming. Application: Personal Floatation Device Buoyancy: ~8.5kg Weight: ~40grams Waist Size: 60-100cm Cover Material: Polyester 420D Inflator Device: Hulky Roberts HR-6F Replacement Cartridge: 16HR-6F Country of Origin: Japan