The waterproof pill holder is durable, anti-oxidation, and protects medicine from crushing and contamination. It has a good sealing performance ensuring bottle inside cleanliness and safety. The keychain design makes it convenient to carry anywhere and store pills or small items. Made of high quality Stainless steel for lightweight, waterproof, and airtight design Perfect size and keychain design for easy clipping to key chains, handbags, or belt loops Convenient for outdoor activities such as water parks, fishing, bike riding, and camping Durable surface and concealed O-ring seal to protect medicine from crushing and contamination<br><br>Stylish and elegant appearance, making it a perfect gift for friends or family Outside Length: 38mm Outside Diameter: 12mm Inside Length: 30mm Inside Diameter: 9mm Colour:Silver Material:Stainless steel<br><br>Package Contents: 2 x Ultralight Seal Bottle<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.