Tefal Travel Mug, 0.36L Capacity, Thermal, 360° Drinking Area, Black, Stainless Steel & Plastic, K3081114

what is the dimensions of bottom surface .I want to place in car cup holder

For the stainless material, is it 304 or less?

I love this flask so much until it started leaking for no apparent reason. I had it now shelved it as i cant enjoy using it the way before.?

With the lid taken off how tall is the metal part? I need to replace the mug tjat ce with my coffee maker so anything more than 15cm is too big. Thx!