Keep valuable items, lighter ones, matches, electronic gadget, etc. Save and dry, good waterproof, can float, shockproof through 3mm PE inner lining. (Can not be submerged in water or will leak)A wonderful tool for camping, boating, fishing, tubing, swimming, kiteboarding, or other water sports.100% brand new and high quality Material: Plastic Size(Length*Width*Thickness): show as picture Color: Small 12.5cm/4.88'' x 7.5cm/2.93'' x 3.5cm/1.37'' Big One 16.5cm/6.49'' x 10.5cm/4.13'' x 5.5cm/2.16'' Package Included:1*Portable Outdoor, Shockproof, Shockproof, Waterproof Sealed Survival Storage Due to size measurements are done manually, so there may be a 0.1-0.5 inch error. Please understand due to the light exposure or the monitor to the computer difference, so I can't guarantee that the pictures and the actual colors are 100% the same.