You Can Buy This Item from Amazon:

Bullet Point:

1) Compatible with GoPro Hero 4 Black and Silver Edition.
2) Perfect fit.To repair your scratched or broken faceplate.
3) Come with a pry tool as free gift.
4) Well packed with plastic box.
5) Package includes: Front cover with mode button x 1,pry tool x 1.

Product Description:

This front cover with mode button replacement is used to repair your scratched or broken hero 4 faceplate.It's compatible with GoPro Hero 4 Silver and Black edition.

Please note: Instruction is NOT included in the package,You are advised to get a professional technician to do the installation.

Package Includes:
Front Cover with mode button x 1
Pry tool x 1