moumou Time Capsule Anti-Corrosion Waterproof Stainless Steel Capsule Container Durable Lock Container for Future (7.3 inch)

Inside Diameter: 3.4inch(8.6cm) / Total Length: 7.3inch(18.5cm). Please see specific in the picture. Premium Quality: Polished Stainless Steel resists corrosion, best material for time capsules. High strength, high corrosion resistance, high tightness, pressure, low temperature resistant, high temperature resistant, not easy ageing. 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 two silicone gaskets and all accessories needed for assemble this time capsule. Best Future Gift: Kids can write to themselves as seniors and then bury in the ground. Can last for 200 years. No worry about the lifespan.