Description
The Holy Trainer V4 Nub – Steel – 20mm is a premium micro-length design built for wearers who want serious restraint in the smallest possible size.
At just 20mm (0.78″) in length, this cage is our most recommended micro option. The front dome alone weighs 2.88oz (81.7g), and when paired with the included ergonomic rings, the full weight ranges between 7.76oz (220g) and 10.58oz (300g). This weight ensures real, effective prevention of erections while delivering a satisfying sense of control.
In 2025, the design underwent three major upgrades:
- Material Upgrade – The original 304 stainless steel has been replaced with medical-grade 316L stainless steel. Known for its exceptional resistance to rust, hypoallergenic properties, and antibacterial performance, it’s safe for long-term wear—even in the shower.
- Improved Ring Design – The cage now features HTV4-compatible locking rings in five sizes, 1.42″ (36mm), 1.57″ (40mm), 1.77″ (45mm), 1.97″ (50mm), 2.17″ (55mm), based on feedback from nearly 1,000 users. The redesigned arc ensures better anatomical fit and comfort.
- Color Expansion – Beyond the classic polished silver, the cage is now also available in gold and rainbow finishes, offering more personalization for your style.
Every edge is carefully polished to a mirror finish, ensuring smooth contact against the skin without irritation. The compact design, combined with its weight, makes it both secure and beautifully effective in maintaining control.
Product Specs
- Material: 316L surgical stainless steel
- Cage tube length: 0.78” (20mm)
- Cage internal width: 1.46” (37mm)
- Ring sizes: 1.42″ (36mm), 1.57″ (40mm), 1.77″ (45mm), 1.97″ (50mm), 2.17″ (55mm)
- Weight: 7.76oz (220g) and 10.58oz (300g)
Package Includes
- 1 x Holy Trainer V4 Nub – Steel – 20mm
- 1 x Ring
- 1 x Lock with 2 Keys
Explore a wide range of sizes and styles in the Holy Trainer Collection, including the popular Steel Holy Trainer V5 Nub. Discover why it’s a top choice for comfort and security.
Reviews
There are no reviews yet.