aaravision 280 ml Steel Flask  (Pack of 1, Black)

Keep your water Hot and cold for 24 Hours ,because it has inside and outside the 304 stainless steel,Cup mouth perfect convergence.cup body anti-skid off.Please do not boil the bottle body for fear of deformation..The Vaccum bottle with straw should not be filled with drinks below 50'c temperature to avoid the spray of suction nozzle or the scald of direct drinking when opening.Do not put expansive objects inside ,such as dry ice and carbonated drinks .