Material: High Borosilicate Glass + Glass Straw + Anti-Slip Rubber Cover Function: high temperature resistant, can be fully sealed, no water leaks, easy to clean modern classic style: this shot glass comes Modern Classic Style: This Standard Glass Comes With Lid, Glass Tube And Leather Sleeves, The Lid Is Made Of Premium Plastic And Silica Gel To Keep The Water, Juice, Coffee Or Drinks In The Lock MULTIPURPOSE DAILY GLASSES - Lightweight, Durable, Hygienic And Simple, Perfect For Your Home, Office, Picnic, Camping Or Use While On The Go Out, It's Also Perfect For Your Hot Or Cold Beverages, Coffee, Juices, Milk And Tea. Also a great gift for those who need to achieve water drinking goals. Easy to clean - simply rinse and wash gently with soap and water after use. The glass straws can be easily washed with the straw cleaning brush in the kit. Please wash it thoroughly with soap before first use. They can be cleaned in the dishwasher, but cannot be used in microwaves, sterilizers, or ovens.