Four black outline icons on a white background, including a fitness machine, gauge, lightning bolt, and temperature symbol

Minimal black line fitness and weather icon set

A clean set of four black outline icons appears on a white background, arranged in a simple two-by-two grid. The symbols suggest fitness, timing, energy, and temperature or weather conditions. Thick rounded lines and generous spacing give the design a modern, web-friendly look with strong contrast and plenty of negative space. Each icon is isolated and evenly balanced, making the composition suitable for app interfaces, infographics, or presentation graphics. The upper left mark resembles a gym or exercise machine, while the upper right circular gauge reads like a speedometer or timer. A lightning bolt and a sun-with-thermometer symbol complete the lower row, adding themes of power, heat, and measurement. The overall mood is utilitarian and minimal, with no color beyond black and white.