Features: The body of mason cups with lids and straws is transparent, making it easy for us to detect the condition of the drink in the cup. You can DIY draw your favorite patterns on the drinking cups with your family, enjoying the pleasant leisure time, and get a cup of your own. Specifications: Main material: glass, stainless steel Color: as shown in the picture Capacity: about 20 oz Package includes: 4 x Mason jar with lid and straw 1 x Straw brush 1 x Cleaning brush Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.