About this item *SOFT PROTECTOR for NAIXUES DK09 1.69" Smart Watch, you must make sure your watch model number is same before buying *The protector has 3 layers. Firstly, pls peel off the Red "Back 1" layer, then put the protector to screen, finally peel of Black "Front 2" layer, Leave the Middle layer on the screen. The middle layer is stickier to the side of "Back 1", some customers peel "Front 2" firstly in fact, and the side to "Front 2” is not sticky. If you meet this situation, please wrinkle the Red "Back 1", separate it to two layers, peel off the middle layer, let it go back to Black "Front 1", then install to screen *BUBBLE SELF-HEALING: Please use the card to push when installing, please refer to the installation diagram. Please use the card to push until the bubbles disappear. if buble is big, you need remove the protector and stick it again; *ANTI-SHATTER & ANTI SCRATCH, HIGH TRANSPARENCY & HIGH SENSITIVITY › See more product details