EMPIRE Galaxy Prevail 2 / Ring Screen Protector Cover, MPERO Collection Clear Screen Protector for Samsung Galaxy Prevail 2 / Galaxy Ring M840 Compatible with Samsung Galaxy Prevail 2 / Galaxy Ring M840. Precisely cut to fit devices screen. Non-adhesive backing will not leave sticky residue behind if you decide to remove screen protector. Includes cloth, detailed instructions, and screen protector. MPERO is a protected trademark.