@cptnjarhead Funny you should ask lol its 3m double sided tape. I shipped the Mod to CES via FEd ex with fragile written all over it like 15 times. they flat out drop it on the front panel at some point and cracked and busted all the panels in about 15 spots, I had to glue Teh panles back together and need something to tack themtogether enough so they wouldn't move. now its cracked ice, which stills helps the over all ice effect