Copula — One Strap. Any Two Circles.

In grammar, the copula is the word that joins two parts into a single statement. Ours does the same — to the body.

The body is a collection of circles: wrists, ankles, elbows, thighs, a waist. Copula closes any two of them together. Not with a pair of cuffs and a chain between them — with a single, continuous strap of Italian full-grain leather that, through a precise configuration of keepers, wraps one circle, then the other, and draws them into one clean, unbroken line. No links. No carabiners. No assembly. One strap, one motion, two circles joined — beautifully and in seconds.

A vocabulary of positions.

Wrists bound in front — or locked behind the back. Ankles cinched into a measured, shortened step. A wrist drawn down to a thigh. An ankle folded against a thigh, sealing the leg shut. Elbows pulled toward each other. An arm pinned to the waist. Wrist to opposite ankle, folding the body into itself. Every pairing is a different sentence — and Copula speaks them all.

Two D-rings. Fixation beyond fixation.

On either side of the bound sections sit two steel D-rings — expansion ports for your imagination. Tether Copula to a bedframe, a cross, a hook in the wall. Clip on a leash. Or run a line straight to one of Frenum's seven rings, and the sentence becomes a paragraph. Binding two circles together is where Copula starts — not where it ends.

Escape-proof by geometry.

Copula carries no locks — and needs none. The buckles sit where bound hands cannot work: with wrists closed side by side, fingers have no angle, no reach, no leverage. It isn't a mechanism holding you in place. It's geometry. And geometry doesn't negotiate.

Wide where it matters.

The broad band spreads pressure across a generous surface instead of biting into a thin line — a firm, secure hold that stays comfortable deep into long scenes. Solid steel roller buckles and a full row of adjustment holes along the entire length mean the fit is always exact, never approximate.

Four lengths. Every circumference.

From the slimmest pair of wrists to a thigh or a waist: 40, 60, 80 and 100 cm, each adjustable across its full length. Whatever two circles you choose, there is a Copula that closes them.

The details:

• One-piece construction: a single continuous strap forms both cuffs

• Premium Italian full-grain leather, wide-band design for distributed, comfortable pressure

• 2 steel D-rings for tethers, leashes and anchoring — pairs perfectly with Frenum

• Solid steel roller buckles; adjustment holes along the entire length

• Five sizes: 40 / 50 / 60 / 80 / 100 cm

• Escape-proof by design when wrists are bound — no locks required

• Handcrafted in the EU

Copula. Two circles. One statement.