Master Series Japanese Clamps

Clover Design That Tightens on Demand

Pull the O-ring and the grip on these Master Series Japanese Clamps gets stronger. These chrome clover-style clamps from XR Brands respond directly to tension, so the pressure on each nipple rises the moment the connecting ring is drawn outward. Ease off, and the bite relaxes. It is a clean, mechanical way to build intensity during endurance and sensation play, alone or with a partner you plan to direct.

Build & Quality

Each clamp is made from metal with a polished chrome finish that reads as sleek and serious. Metal holds its shape under repeated tension, and the smooth surface wipes clean easily after a session. The set is also phthalate-free. There are no soft coatings to wear thin, just solid hardware with a bright, mirror-like look.

Hardware & Fasteners

The clover mechanism works with pinching sides that press together to open the jaws, then close for application and release. The included O-ring links the pair and serves as the control point. Because it is a ring rather than a fixed chain, it invites customization: hang weights from it, lace it into a harness or restraint setup, or simply hold it and tug. You set the pace and the pressure.

Comfort & Fit

Each clamp measures about 3.5 inches long and 1.6 inches wide, with an overall height of roughly 8.25 inches including the rings. The slightly widened clamp ends spread contact across a broader area for a secure hold without piercing, and they make placement and removal more manageable. At around 0.2 pounds, the set is light enough to wear for an extended scene while still feeling substantial in the hand.

• Chrome metal construction, phthalate-free
• Clover-style jaws that tighten when the O-ring is pulled
• Included O-ring for weighting, lacing and more
• Widened clamp ends for a secure, non-piercing grip
• Approximately 3.5 in long, 1.6 in wide, 0.2 lb