Amazon.com : UTEBIT Mini Ball Head, Tripod Head with 1/4" hot Shoe, 360° Rotatable Ball Heads Camera Mount Adapter, Aluminium 20mm Ballhead Compatible with Tripods, Monopods, HTC Vive, SLR Cameras Loading 6.6lb :
RRS: BH-40 Ball Head
When a soccer/futbol player heads the ball, it never knocks him unconscious. Is it likely to cause microtrauma or any sort of microconcussion? - Quora
Soccer player balancing ball on head Stock Photo - Alamy