I installed this on
Nissan Sylphy

Review
Purchase a whole box with 10 sheet in it. Effectively it's $15 a piece. Much cheaper if you do your own installation. I install single layer on roof, back of rear seat, below rear seat, and 4 door. Just nice use up all 10 sheets. Take note with with only single layer it's pretty heave. I estimate ard 12KG added to whole car.

What I like
Value for money DIY

What I do not like
May be Singtech could consider selling piece by piece in case we need little extra. Also, the photo is misleading, alu tape and roller not include!

Review
Being an audiophile, I always turned my music up loud, even while driving home from a long day at work just to keep myself awake. I usually get horned at for something that is actually safe for me, since without music, I may get sleepy. Getting frustrated with the other drivers, I went on to find myself something to keep my music behind the doors of my car. Came across these Singtech Sound Proofing Damping Mat, and gave it a try. What I got was now my music plays louder since the sound may have rebounded off the sound proof mats and stayed in the car. I now face no more frustrating drivers horning at me for my music.

What I like
It is really effective!

What I do not like
They are quite expensive as to what I expected.