The Topology Premium Chastity Cage is made to break away from soft, round designs. Built from solid 304 stainless steel, it has a cool metal feel and a bold square shape that looks strong and confident. The clean lines and hollow square body give it a sharp, modern style that stands out right away. This cage follows the natural curve of the penis, helping it sit in a calm, relaxed position. It holds gently but firmly, blocking erections without harsh pressure. On the back, a square panel introduces a striking visual contrast—adding a sense of structure, tension, and graphic novelty that sets this design apart from traditional forms. The front opening is enlarged, making urination easier and cleaner during daily wear. The open structure also helps with airflow, keeping things more comfortable over long periods. To fit different bodies and needs, the cage is available in three sizes: Small, Medium & Large. Multiple ring options are available, including round and curved styles. This model includes a wearable ring version and comes with the optional belt for added support, helping reduce movement and skin friction during long-term wear. Topology is for those who love strong geometry, clear structure, and steady control. It’s simple, solid, and built for discipline with style. SPECIFICATIONS Model: PL318A Size: Large Weight: 146g Total Length: 3.38" / 86 mm Cage Length: 2.71" / 69 mm Cage Diameter: 1.45" / 37 mm Material: 304 Grade Stainless Steel Horizontal inner diameter of the urination hole: 0.35" / 9mm Vertical inner diameter of the urination hole: 0.62" / 16mm Cage Model: PM318A Size: Medium Weight: 135g Total Length: 1.96" / 50 mm Cage Length: 1.22"/ 31 mm Cage Diameter: 1.25" / 32 mm Material: 304 Grade Stainless Steel Horizontal inner diameter of the urination hole: 0.35" / 9mm Vertical inner diameter of the urination hole: 0.62" / 16mm Cage Model: PS318A Size: Small Weight: 135g Total Length: 1.96" / 50 mm Cage Length: 1.22"/ 31 mm Cage Diameter: 1.25" / 32 mm Material: 304 Grade Stainless Steel Horizontal inner diameter of the urination hole: 0.35" / 9mm Vertical inner diameter of the urination hole: 0.62" / 16mm SUPPORT BELT： Suitable for waist circumference 85cm to 130cm [33.4" to 51"], can be customized to adjust the tightness. Compatible with most Chastity Cages
Small 40mm Curved, Small 45mm Curved, Small 50mm Curved, Small 55mm Curved, Small 40mm Round, Small 45mm Round, Small 50mm Round, Small 55mm Round, Medium 40mm Curved, Medium 45mm Curved, Medium 50mm Curved, Medium 55mm Curved, Medium 40mm Round, Medium 45mm Round, Medium 50mm Round, Medium 55mm Round, Large 40mm Curved, Large 45mm Curved, Large 50mm Curved, Large 55mm Curved, Large 40mm Round, Large 45mm Round, Large 50mm Round, Large 55mm Round