Time Capsule Anti Corrosion Waterproof Stainless Steel Container Durable Lock for Future Graduation Gift (16.3 Inch)

Inside Diameter: 3.9inch(10cm) / Total Length: 16.3inch(41.5cm). Please see specific in the picture. We also have a 300ml zip-top can size comparison for reference. Anti-Corrosion: Actual Stainless Steel, which can withstands most exterior condition and last for 200 years. No worry about the lifespan. Waterproof: Silicone gaskets at both ends makes the capsule seals nicely, which will keep all moisture out. (To get best waterproof effect, please tighten bolts diagonally) Package: As list in the picture. Include one pair of gloves, two silicone gaskets and all accessories needed for assemble this time capsule Best Birthday and Future gift. Kids can write to themselve s as seniors and then bury in the ground.This time lock container is larger than A4 paper that it can hold quite a lot envelopes.