Once it is all glued together, allow all the glue to cure. The boom will be very sensitive to breakage at the headset. Especially so if you used a Papermate pen as I did. If I were to do this project over again, I would select a different material for the boom. Perhaps a Bic pen tube or some other type of plastic to which glue more readily adheres. Despite the fragility of the boom, I am very glad that I added it. It has made a world of difference in the functionality of the headset. Before when I was driving my truck any faster than 25 mph I had to shout to be heard. When I received a phone call on my bicycle, I had to give up trying to continue riding, or just not answer the phone. (wouldn't that be a tragedy?) Now people have no trouble at all hearing me in the truck. Today when my wife called me, she didn't even know I was riding my bike, except that I was breathing rather heavier than normal. The effectiveness of the boom has well proven itself to me. Also, I would like to see more headsets be this large. It discourages leaving it on your face when not in use, as it looks rather silly. (normal bluetooth headsets look rather silly sitting on a person's ear when not in use, but this one does so in a bigger manner) Also, the act of pulling out and attaching this large headset should lead to less frequent interactions in the grocery store inadvertently engaging the entire line in conversation.