Herman Sprenger ULTRA-PLUS prong collar - semi-slip - black stainless steel - 58 cm / 3.2 mm

The Herman Sprenger ULTRA-PLUS prong collar in the semi-slip version, 58 cm long - for larger dogs with a broader neck. The semi-slip version has no ClickLock buckle; the leash clips into the rings, and a pull tightens the collar evenly around the neck.

Semi-slip design

On a semi-slip prong collar, a pull on the leash tightens the collar around its whole circumference - the classic pinch-collar mechanism. The prongs sit evenly around the dog's neck, so with correct use they give a precise cue without excessive pressure in any single spot. A 3.2 mm wire and 4 cm links are the standard size for medium and larger dogs.

The ULTRA-PLUS system

ULTRA-PLUS is a length-adjustment system based on an even number of links - you add or remove links in pairs, and each change shifts the circumference by 8 cm. That way the collar fits precisely to a particular dog's neck.

Black galvanic coating

The base of the collar is stainless steel - resistant to corrosion and moisture. The black finish is created by galvanic blackening of the surface followed by polishing. The manufacturer states plainly that the coating is not permanent - over time, at points of contact and friction, it naturally wears through, giving a patina effect.

Sprenger also notes that on dogs with very light or white coats, the hair may discolour where it touches the black collar.

For on-leash work only

This prong collar is intended for on-leash work during active training. It should not be used during free running, transport or while the dog is unsupervised.

Not sure this size is right?

A prong collar should sit snugly just below the dog's jaw, without sagging - that's how we size it. How to measure the neck, and what to do when the measurement falls between sizes, is covered step by step in our prong collar sizing guide.