Black line icons for virtual reality, robotics, 3D cube, and fingerprint

A clean white background holds four separate black outline icons arranged in a balanced grid. The top left symbol is a virtual reality headset, while the top right shows a robotic hand with circuit-like finger details. At the bottom left, a wireframe cube with arrows suggests 3D modeling or spatial design. The bottom right icon is a fingerprint rendered as concentric lines and dots, hinting at biometrics or identity verification. Sparse composition and strong contrast give the set a crisp, technical feel that works well for interface design, technology themes, and infographic use. With no color beyond black and white, the graphics remain versatile for web, print, or presentation layouts.