Probably the best that has been produced. A glass of milk can appear to empty as you pour it or appear to drink it.. To reset the glass has to be simply rotated. The liquid is sealed in the glass.
 
NO MORE MESS!!!
 
"This is simply the best milk glass I have ever used, It instantly replaced my normal milk jug, ready to go right out the box, Highley recommended" 
Sammy Magic Magic