STANLEY Trigger-Action Travel Mug 0.25l, polar, vacuum insulation, one-hand operation With the Slim Line version of the TRIGGER-ACTION TRAVEL MUG, STANLEY is introducing a revised version of the mug that can be operated with one hand. Thanks to the new, slimmer design, the mug is even more comfortable to hold and the 250ml version fits under most coffee machines. Pressing the large and very smooth-running button to activate the drinking opening with one hand makes drinking - on the go - a pleasure. The polar white drinking mug made of 18/8 stainless steel with vacuum insulation has a capacity of 250 ml and keeps drinks hot for up to 3 hours or chilled for 4 hours. The TRIGGER-ACTION TRAVEL MUG is completely dishwasher-safe, leak-proof and fits in standard car cup holders. BPA free. We ar.