You must watch the instruction video here and read the instruction manual before you install the protector to watch’s screen
3D Full covered screen protector: PMMA material, Fully Protect the screen of smart watch
EASY INSTALLATION: If there are bubbles under the protector, please just peel off the protector and install it again
3D Screen protectors Compatible with IDW13 1.8” of Woneligo, Faweio, Amzhero, TOOBUR, VRPEFIT, Konitee, Gydom, IDW19 of MILOUZ and IDW15 of Fitpolo TMHAI 1.8" VERYFIT Smartwatch (Answer/Make Calls), you must make sure that the model number is right before buying
HIGH TRANSPARENCY: you can see the screen display clearly, more transparent than glass
ANTI-SHATTER, It will not break like other tempered glass protector