The Holy Trainer V4 Maxi Black is for the serious submissive who needs more space, but absolutely no freedom. With over 3 inches of length, this is the largest in the V4 line, made for those with bigger anatomy or those under strict chastity protocols.

The black finish radiates pure Dom energy, dark, discreet, and unmistakably in control. Whether you’re under full-time keyholding or part of a 24/7 dynamic, this cage keeps you locked, disciplined, and focused on service.

Made from reinforced medical-grade resin, it’s lightweight yet rigid enough for long-term wear. Each set includes 4 rings (36, 40, 45, 50mm) to match your anatomy perfectly.

The keyholder holds the power. You just wear the cage.