This Collar is made from two heavy strips of leather sewn together. Nickel plated Spikes and Rivets. Made in the U.S.A. It measures a massive 1/4" thick.

 

This collar is available in two sizes: 25 & 27 Inch

The 25" Collar has (36) 1/2" Classic Spikes & (16) 5/8" 6 Corner Spikes
The 27" Collar has (40) 1/2" Classic Spikes & (18) 5/8" 6 Corner Spikes