A man cracking his knuckles together

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Size: 3264px × 2448px
Photo credit: © Clare / Stockimo / Alamy / Afripics
License: Royalty Free
Model Released: Yes

Keywords: bad, boy, clench, clenched, clenching, cracking, fingers, fist, habit, hands, holding, human, intimidating, knuckles, male, man, medical, noise, noisy, outdoors, pop, popping, stockimo, tight, tough