You can use the NXE finger grip holder for your phone to enable one-hand operation, also can be a desktop mount stand for hands-free viewing. 

• Distinctive metal material skull shape design, fashionable and stylish

• Used as finger holder or desktop stand

• Rotary ring holder provides hands-free viewing

• Strong adhesive for firm sticking, safe and reliable

• Universally suitable for all mobile phones with flat back

Compatible with:

• iPhone 7 / 7 Plus

• Samsung Galaxy S7 / S7 Edge

• Huawei Mate 9 / Mate 9 Pro

• Other smartphones with flat back