How much is a 2 and a blue of weed?

[weedmaster]

Its a slang name of a weight of draw. I don't know if its used in the states but its common in the UK. 2 and a Q is another 1.

What is the weight of these and how much do they usually cost.

been smoking in the uk for 25yrs and have never heard of these slang terms, i must lead a shelterd life