For those of you looking for the suction cup feature... it looks like they only come on the 2 ounce tubes, not the 3 ounce. The product description is incorrect in stating that they come with the suction cups. Other than that, they are great. I did not buy them for travel in particular, but for dispensing my homemade goodies (toothpaste, lotions, etc). They are absoutely wonderful for this purpose. One star removed because I really wanted the suction cups. :)