"Good Sublimation blank caseIpodtouch4/Ipod4/Touch4 Model: PT-04 Sublimation printing by flat heat press machine Material: PC hard plastic phone Case + Sublimation Aluminum metal Insert/metal sheet Double Sided Adhesive Tape already stick on the back of phone case before ship out,so that will save your time to paste this part. Color: black,white,transparent Other different colors also customize