What's in the box:

Universal Fit Focusing Lens Collimating Coated Replacement Glass Lens All Laser Engraving and Cutting Module Head (Standard)

Features:
Designed for all laser module head.
Fine workmanship easy to replace.
Premium quality, enhance a longer service time.
Perfect optical design.
Tiny but powerful.
Note: Only apply to adjust focusing Laser Module, not apply to focused laser module

Specification:
Color: Black + Red
Application: for all laser module head

Packing List:
1 * Replacement Plastic Lens