[Product Information]

• Fill with water or sand (internal graduations allow accurate weight measurement) for use as a travel dumbell
• Unique kayak drybag that doubles as weight training aid while you're away from the gym
• Heavy Duty Waterproof bag will keep everything inside dry， comes with removable shoulderstrap and SoftGrip carry handle
• Packs down small for throwing in your backpack/suitcase or briefcase (weighs only 100g) but fill for any weight up to a 10kg/22pounds (water) or 16.5kg/36pounds (sand) weight
• SoftGrip removable soft handle means a more comfortable weight lifting experience and no accidental unfastening of clasp