Low Temperature Stirling Engine Model Steam Power Physics Toy Lab Teaching Model

Description: Our product is built with durable material of great wear resistance. Adjustable strap leaves you no concern about sizes. Reflective tapes and whistle offer you safe swimming. Red tube enclosed for manual air charging . This is a product which takes your safety into consideration with care. Don't miss it! Features: Adopts high quality material of great durability and wear resistance. Adjustable strap fits all waist sizes. Equipped with reflective tapes for visibility at night, whistle for emergency and red tube for manual air charging. Reusable, washable, convenient, easy to air dry. Inflates about 5 seconds when the user manually pulls the inflation handle. Allows for total freedom of movement when sailing, fishing, hunting, flat-water paddling, stand up paddle boarding (SUP), recreational boating, etc. Specification: Material: TPU + Nylon Color Options: Black, Red, Blue, Orange, Fluorescent Green, Yellow, White Camouflage Size: approx. 70 x 22cm 27.56" x 8.66" Flotation Time: Above 48 Hours Buoyancy: 150N Package Weight: approx. 355g Package Includes: 1 x Inflatable Belt 2 x Reflective Tapes 1 x Whistle 1 x Manual Air Charging Tube Note: The product does not contain a gas bottle, you need to use a 1 2 inch gas bottle, use a 1087g compressed carbon dioxide gas bottle. .