The Mr. Steel Gemini Ball Vise is a premium CBT device designed for controlled compression and sensation play. Made from high-quality stainless steel, it applies even pressure to the testicles through an adjustable screw mechanism, allowing users to find their ideal intensity. The smooth bars and rounded ball ends ensure a secure yet comfortable grip, preventing excessive discomfort while maintaining firm restraint. Perfect for those exploring endurance and restriction play, this vise enhances stimulation by gradually increasing pressure. Its ergonomic design allows for easy adjustments, making it ideal for both solo and partnered BDSM sessions. As with all CBT devices, safety and comfort should always be a priority, ensuring proper circulation and avoiding excessive strain. This durable, easy-to-clean device is a must-have for advanced players looking to push boundaries in sensation control. Always clean thoroughly before and after use for optimal hygiene.