This screen guard is designed to provide high-quality protection for your smartwatch. It features a multi-layer construction, including a high transmission TPU layer, ensuring clarity and durability. The protector comes with removable front and back protection film layers for easy application. The 5-layer design includes a black side (Layer 1), a blue side (Layer 2), a glue layer, and additional protective layers (Layer 4 and Layer 5). For a bubble-free installation, the package includes a wet wipe (Wipes 1) and a dry wipe (Wipes 2) to thoroughly clean your screen. An installation guide is provided with clear steps: clean the surface with the wet wipe, peel off the blackish protection layer using Sticker 1 and place it correctly, then peel off the upper blueish layer using Sticker 2. It is crucial to clean the screen properly before application to avoid dust and bubbles. If you are unfamiliar with the process, it is advisable to seek expert help. This screen guard is compatible with Noise smartwatches, as depicted in the product images.