【Size】Inside Diameter: 3.9inch(10cm) / Total Length: 13.4inch(34cm). Please see specific in the picture. 【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) 【What You Will Get】1x time capsule container and all accessories needed for assemble this time capsule. 【Best Gift for Keeping Memories】Easily impress your family and guests with a thoughtful activity.We can keep all the special moment and memories put in this stainless steel time capsule container for years of enjoyment. 【Best Gift for Keeping Memories】Easily impress your family and guests with a thoughtful activity.We can keep all the special moment and memories put in this stainless steel time capsule container for years of enjoyment.