EXCELLENT AIRTIGHT - 2021 Aufew new pill cases are designed with upgrade silicone rings to offer an excellent airtight to prevent odor or moisture from the air, offering 360-degree protection for the pills to keep them stay dry all the time. GREAT CRAFTSMANSHIP - All Aufew pill boxes are made of high quality alloy in industrial standard to offer superior quality, super sturdy with good hardness, anti-rust, and anti-corrosion. It's safe and can directly contact pills, durable and reliable for a longer lifespan. MEETING YOUR NEEDS - Outer size 2.48”(L) * 1.33”(D), inner depth 1.73”, mouth diameter 0.75”, mini but powerful, the pill organizers not only can be used to store your various pills like vitamins, aspirin, or any other medicines but also great for storing cash, jewelry, fishhook, herbs. EASY TO CARRY & STORE - Portable and lightweight, these pill organizers are with key chain design which allows you easily attach this mini pill case to a key ring, belts, or backpack strap, while the creative appearance makes it a delicate pendant for your backpack. BUY WITH CONFIDENCE - Aufew is a professional manufacture of pill cases and smell-proof containers, all cases and boxes are constructed under the strict quality standard, 30 days money back, feel free to contact us if there is an issue with our airtight pill cases.