The double-walled Yellow Duck is made of glass with high borosilicate content, a new type of lead-free, high-temperature resistant glass with high permeability. *Double layer vacuum insulation design: The cup has a double layer insulation function that prevents fingers from warming up or getting cold.
- Cup is made of heat-resistant and condensation-inhibiting glass
- It can be used in coffee cups, milk cups, juice cups, ice drink cups
- Double layer heat insulation more durable than conventional Glass
- Lightweight and comfortable