Materials:The coffee tumbler is made of 18/8 304 food grade stainless steel double walled,,which can keep the water hot or cold for hours.
Wide Using:The 30 OZ tumbler nice for the office,at home,camping and hiking,sporting.
With Lid and Straw:The portable tumbler cups with leakproof lid and stainless steel straw,it's idea for outdoor,travel,home or car using.Suitable for most car cup holders.