High Quality Material:Made of high quality PS+gold plated metal+silicone material,strong lock,reinforced and durable,the bottom is stable and not easy to fall Excellent Workmanship:simple design,rounded corners,stylish and beautiful,easy to clean Sealed and Fresh Keeping:built in silicone rings,good sealing,one way vent design,so that the in the tank can only get in and out,prevent the oxidation of coffee beans,and effectively prolong the shelf life of coffee in a dry environment 1.1L Large Capacity:9.5cm large bottle mouth,easy to install and remove,easy to store all kinds of items that need moisture proof and fresh keeping,suitable for storing coffee beans,coffee powder,milk powder,nuts,snacks,tea,etc Note:The one way valve sealed can is designed for air tightness.The water pressure and air pressure are different,so the water in the sealed can will leak.Please do not measure the tightness of the can with water.It is recommended to fill the can with coffee beans.,Try again after a while if you can smell the aroma of coffee beans without opening the lid