K-11 WYLIE Face ID Dot Matrix Calibrate Fixture With Stencil, Used For iPhone repair, specifically For Face ID and Dot Matrix Alignment . Compatibility: Supports iPhone X to 15 Pro Max models. Function: Aids in testing and aligning the Face ID system and resolving dot matrix issues. Design: Features a fixture for stable IC chip clamping and a stencil for precise positioning. Material: Constructed with a durable, high-temperature resistant material.