Master Series Annex Erection Enhancer

What the Annex Is and Who It Suits

The Master Series Annex Erection Enhancer from XR Brands is a black cock ring with a built-in T-style divider that separates the shaft from the testicles. It suits men who want snug, structured cock and ball gear with a little restraint, without buckles, snaps or metal.

Build & Materials

The Annex is a single piece of flexible thermoplastic rubber (TPR), and it is phthalate-free. There are no seams to pinch and no hardware to keep track of. The material has real give. It stretches readily over the wearer, then pulls back into shape so the fit stays close instead of loose and floppy.

The black finish is plain and understated. It pairs easily with other fetish and bondage pieces in a kit.

How the Divider Works

This is where the Annex stands apart from a basic ring. The main compartment takes the penis. The testicles go through the separator below it. That T-shaped divider holds everything in place and keeps the wearer feeling just subdued enough to make things interesting.

• Main ring with a 1.39 inch interior width (unstretched)
• T-style divider that separates the shaft from the testicles
• Flexible, stretchy TPR construction
• Phthalate-free
• No metal parts, fasteners or clasps

Fit & Adjustability

The fit comes from the stretch of the material, not from a strap or buckle. At rest, the main ring measures 1.39 inches across the inside. It expands over the wearer and settles back into a firm hug. Because it is a slip-on design, putting it on and taking it off is simple: stretch the TPR open and ease it into place or off again. There is no hardware to fumble with, and nothing to loosen mid-scene. The fit adjusts itself through the give of the rubber, which makes it a straightforward option for anyone who prefers gear that is quick to wear and easy to remove.