20 oz insulated stainless steel tumbler. 
GLOW IN THEE DARK: With a glow coating, which allows this skinny tumbler to glow in the dark. The tumbler needs to absorb light to glow in the dark. For a more luminous glow a UV light is recommended for charging. 
•Each tumbler for sublimation is individually gift boxed and contains 1 spill-proof lid, 1 stainless steel straw, 1 straw brush, 1 non-slip silicone base to prevent it from sliding on slippery surfaces and to reduce noise. It is an ideal  gift option for any special occasion.  
•Insulated tumbler has vacuum double wall design which ensures a good insulation. No matter which season you are in, you can enjoy your favorite hot and cold drinks for a long time. Keeping hot drinks hot for up to 5 hours and cold drinks cold for up to 8 hours.