Glass cup with bamboo lid. Comes with stainless steel straw and cleaning brush. Each cup is 5.88 inches high, 3.08 inches in diameter, and has a volume of 16oz.
 
SAFE MATERIAL: Free of lead and BPA. 
 
COLD & HEAT RESISTANT:  The glass jar is resistant to high and low temperatures, it can withstand sudden changes in the temperature difference between -68 degree F to 212 degree F. Suitable for soda, tea, iced coffe, juice, milk, or any other drinks you like.