From the manufacturer

DEWALT manufactures high-quality power tools and hand tools, that are engineered to offer maximum efficiency. The products are designed with smart features to make them user-friendly. This red beam 3-line laser is engineered to assist the user with 90-degree layouts. It features an ultra-bright diode that provides clear visibility in bright job-site conditions.

Provides Precise 90-Degree Layouts

This 3-beam multi-line laser enables professional architects and DIY handy men to mark extremely precise intersecting red beam laser lines. It is an ideal device that can assist users with working on interior decorations, ceiling fittings, electrical fittings, pipe fittings and more.

Tough Plastic Case

This high precision laser device comes packed in a tough plastic case that includes a wall mount and four batteries. The case has a dual sided lock for secured storage. It also has a comfortable handle grip on the top for easy portability.