Each straw is ranked within the Straw Hierarchy based on its complexity and the level of effort needed to draw liquid through it. Straw #1 is the easiest; #8 is the most difficult

Shape may vary, but difficulty and efficacy are unchanged 

PLEASE  NOTE THAT STRAW #2 DOES NOT COME WITH A LIP BLOCK wef 26 APRIL 2010

Lip Block included

PLEASE NOTE THAT STRAW #3  DOES NOT COME WITH A LIP BLOCK WEF 26 APRIL 2010.

There is no incorrect way to assemble this straw -- experiment, have fun with it, change it every time you use it -- the importance is the length, which requires all eight individual segments.