[Double Layer Heart Cup Description] Product description: Product Name:Heart cup Craft:handmade glass Material:high boron silicon glass Capacity:240ml Size:3.77in * 3.74in * 2.04in Heat resistance:-20℃～180℃ Reminder: Don't put it in the microwave or dishwasher. To preserve the longevity of the glass,we are recommend to wash by hand to avoid the strongly water of dishwasher destroy the silicone vent. Package included: 2 X Heart love shaped glass [ Friendly customer service ] If you find our Double Layer Heart Cup have any questions, please feel free to contact us and we will resolve it as soon as possible.