the Bubble Tea Cup is Made of Borosilicate Glass Material, Which Can be Used for a Long Time, the Can Lid is Made of Bamboo Material, Which is Durable, the Straw is Made of Glass, Which is Sturdy & Not Easy to Bend. Jar Shape Glass is Suitable for Many Hot & Cold Drink, Such as Tea, Water, Iced Coffee, Juice, Cocktails, Milk & Other Drink. It Easy to Clean the Cup After Using, & When Not in Use, It Can be Stored in the Kitchen Cupboard Without Taking Up Much Space. Suitable for Parties & Various Festive Dinners, with Lid & Straw Design Make Your Food Look More Delicious & Bring Joy to Your Party.