EMPIRE Purple Rubberized Snap-On Cover Case for Verizon HTC ThunderBolt Premium high quality snap-on hard cover case protector. Rubber texture holds tight grip on surfaces to prevent falling or sliding. Snaps right over your phone and gives it a new look while providing great protection. Openings for full phone functionality. Constructed for strong durability and scratch resistance. EMPIRE(TM) is a registered trademark with the USPTO.