Express A Bold, Artistic Flair With This Matching Glass Sipper And Bookmark Set, Featuring Striking Black Hand-Drawn Hearts For A Stylish And Modern Accent To Every Sip And Page. Made From High-Quality Borosilicate Glass, This Sipper Is Known For Its Exceptional Durability And Thermal Resistance. Unlike Regular Glass, Borosilicate Glass Can Withstand Extreme Temperatures — Making It Perfect For Both Hot And Cold Beverages. Whether You’Re Sipping Your Morning Coffee, A Refreshing Juice, Or Infused Water, This Glass Ensures Purity Of Taste Without Any Unwanted Odors Or Chemical Leaching.