These are #3 weathered steer horns. We sort the weathered steer horns into different grades depending on how distressed they look. The #3 horns are the most distressed. They are natural products and come in a variety of colors.
The horns are 5" to 12" long measured along the outside curve with a circumference of 6" to 11".
Cows are not an endangered species. The cows are not killed just for their horns.