MaYuan Protect Glass Back Cover Broken Screen Pen Phone Glass Blasting Pen(Black)

1. The cracking strength of the back cover is adjustable
2. No damage to mobile phone accessories
3. No longer worry about penetrating the rear case with too much force
4. The intensity can be adjusted
5. Multiple waterproof/dustproof designs
6. Scope of application: mobile phone repair
7. Material: alloy steel