Bison is like a combination of soft, spongey elk leather and heavy bullhide. It is a very thuddy leather but still soft and very pliable. It is not common for us to get bison in jewel tones like this purple so these are possible limited editions.
Thumpers are the kings of thuddy. The tails put all of the momentum of a swing into the bottom of the tail where it matters most. These floggers are not as intimidating to top with as they look and beginners have a lot of success with them.
Being bison this one is a bit heavier and thuddier than most and I would recommend it for medium to heavy impact play.