Blacked out wide collar with large spikes1 1 2 inch wide biothane collar with black 1 inch wide black buckle , black rivets , and large black3d printed spikes The long spikes are about 4 inches long ant the shorter ones are are about 2 3 4 inches long it is available in multiple neck sizes s =11 3 4 to 13 3 4 inches m = 12 3 4 to 14 1 2 inches l = 13 3 4 to 15 3 4 inches xl = 14 1 2 to 17 inches the spikes are attached to the collar with large stainless steel screws and are quite durable but