Big Dogg Nylon Collar with Silver Spikes by Valhoma.
Double Layer Nylon with Nickel Plated Hardware Spikes, Rollar Buckle, and End D Ring.

2 Rows of Silver Spikes by 3/4 inches wide and 1 inch apart from each other.
Spikes approximately 1/2 inch tall.
Roller Buckle is approximately 1-1/2 inches long by 2 inches wide.
Rectangle ring that holds collar in place is approximately 1/2 inch wide by approximately 1-3/4 long.
Collar slips through End D ring before Roller Buckle and rectangle ring to attach leash.

Available in 5 Colors
Width:  1 3/4" Only
Length:  16" to 26"