Yup, they're finally here! 
Previously only available from a well known vendor Stateside, they have been described as "nearly indestructable"...
(I wonder what happens if you get a hammer to them?)
New features for the ultimate edition:
Greatly improved reformulated plastic tubing - no cracking and no leaking.
Improved and expanded connector base for better leak prevention and tube stability.
Improved wick; still fat/thicker, but stronger.
Available on both sites -
CE2 510 XL Clearomizers Ultimate
or
CE2 510 XL Clearomizers Ultimate
Previously only available from a well known vendor Stateside, they have been described as "nearly indestructable"...
(I wonder what happens if you get a hammer to them?)
New features for the ultimate edition:
Greatly improved reformulated plastic tubing - no cracking and no leaking.
Improved and expanded connector base for better leak prevention and tube stability.
Improved wick; still fat/thicker, but stronger.
Available on both sites -
CE2 510 XL Clearomizers Ultimate
or
CE2 510 XL Clearomizers Ultimate
