Strong Bones Spiral black outline icon
Outline bone with a spiral coil wrapped around the middle of its shaft
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About the Strong Bones Spiral black outline icon
One bone, drawn diagonally with rounded double knobs at each end, has a loose spiral wrapped around the middle of its shaft to suggest reinforcement and density. It stands for bone strength, calcium and vitamin D, osteoporosis prevention and skeletal health. Useful on supplement packaging, pharmacy and clinic sites, nutrition apps, orthopedic pages and medical infographics.
The diagonal placement fills the square evenly, and the coil crosses in front of and behind the shaft so the wrap reads as three-dimensional. It pairs with joint, muscle and vitamin icons. Keep it above 32 px so the spiral does not blur into the bone.
This is the black outline version of the strong bones spiral icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Get it free as an SVG vector or transparent PNG (16-512px), copy the SVG code, or restyle it in the free online editor — recolor any part, add gold, neon or gradient effects, animate it, or export EPS, PDF and DXF.
Free for personal and commercial use with attribution.
