Installation are pretty easy and here are instruction videos and pics

PLEASE NOTE: Each blown glass is a one-of-a-kind, unique, hand-blown glass to be built by hand.  As with all art, there will be slight variations including length due the natural characteristics of hand blown glass. Also the size of the finished unit is greatly affected  by how each blown glass is tied to the metal frame. The layer and density are the main criteria which make the variation in size.

Although everyone has their own installation methods, we recommend starting from the bottom and securing the glass tubes to the "central frame cage". When you reach the middle part of the chandelier, it's important for the glass tubes to stand upright and spread outwards rather than sag. The following tips in the pic and video below illustrate how to keep the glass tubes upright or point out. 

install Chihuly chandelier
 

While if you try to tie the glass pieces to the rings above the level where the glass pieces should located, the glass stems would sag. The following pic and video show that this method will result in the glass stems sag.

install Chihuly chandelier glass sag
 

The below are some videos demonstrating the process of installing the blown glass chandelier:

  

  

  

  

  

  

process of installing blown glass chandelier
installation instruction of blown glass chandelier