Its called "tacky glue" and you can get it from pretty much anywhere (fabric stores, crafts stores, walmart.. wherever). Just apply a generous amount to the back, and stick... works awesome. No probs on mine, and they've been on my seat back for about 1 month. Glad you like.

2006 Pontiac G6 3900SFI GTP Coupe CAI, Stainless Cat Back, Vector Tune, Strut Brace, Eibach Pro Kit, Custom Made Projector Headlights, 4300K, 20% Tint Former Owner- 2000 "Stryped" CSVT CEG Dragon Run- Oct 13-15