The Boker Magnum Blackjay is a full‑size folding knife designed to deliver reliable everyday cutting performance with controlled handling and modern ergonomics. The drop‑point blade measures 3.54 inches and is manufactured from 440A stainless steel, featuring a black coated finish that enhances corrosion resistance and minimizes glare during daily use. Overall length measures 8.18 inches with a balanced overall weight of approximately 4.23 ounces, providing a substantial feel without excessive carry burden. Blade geometry and edge profile support common tasks such as packaging, food prep, and general utility cutting.

Deployment is supported by both a rear flipper and bilateral thumb studs, allowing flexible one‑handed operation. A button lock mechanism secures the blade during use while enabling smooth, controlled closing. The handle is constructed from textured G10 to promote grip security and ergonomic balance, complemented by jimping along the blade spine and a backspacer for added control. A right‑hand, tip‑up pocket clip supports secure and discreet carry for everyday use.