Herm Sprenger Steel Pinch Collar size:
3.25mm,10 links,23 inch ( 58 cm ) additional link 1 2/5 inch ( 3.5 cm ).

Also you can add to order nylon removable cover/protector for this Herm Sprenger prong collar!!

Nylon cover for prong collar.
Makes your prong collar look like a regular flat nylon collar.
Simply place the nylon cover around your collar and fasten the Velcro straps.
The nylon cover conceals the prongs from onlookers and just gives an improved look to the prong collar.

General “Woof” Collar Tip: Please note that most of the metal pinch collars can be adjustable
How? Very simple. No skills or tools needed. You can remove or add extra links in seconds by hands

From the top manufacturer of chrome-plated German steel chain collars, these prong/pinch collars are the no-nonsense alternative for your toughest of canine customers.
The superior quality workmanship of these Herm Sprenger Prong Collars provides an excellent training tool for getting the attention and obedience of more obstinate dogs.

Collar is intended for use ONLY while dog is on leash and attended.
Only attach lead to D-ring. Guaranteed Against Rust, Tarnish or Breakage.