4 Pack Betty Boba TumblersSave $25 when you get 4 tumblers! One for home, one for work school, one for the car, and one for a friend ;) Each complete plastic free set comes with the glass jar that keeps your drinks cool (or warm), a patent pending ceramic lid with a silicon plug, a glass boba straw that makes everything taste better, and a large straw cleaning brush, all designed perfectly for each other. Each piece is dishwasher safe for easy care.