Tempered front glass cover replacement compatible with iMac 27 inch Thunderbolt and Cinema Display. For Thunderbolt Display Mid 2011 - MC914LL/A. Part No.: 922-9919 For Cinema Display Mid 2010 - MC007LL/A. Part No.: 922-9344 Safe and environment-friendly packing with degradable EPE foam and reusable corrugated box. Two side films to protect the glass from scratch. Please do remove them before instal.