7mm COMPETITION Knee Sleeves CERBERUS StrengthThe three-headed dog represents strength and also bravery. The legendary monster is a remarkably daunting watchdog at the gates of the underworld, protecting the realm of the dead. With its triple faces and a muscular body, this formidable creature strikes fear into the hearts of those who encounter it. According to legend that its immense strength can crush any and all impediment in its track.