The Wolver Tail is an accessory.
Available Wolver Tail Accessories
"Wolf Tails" - (Only one of each kind of the Steam items can be redeemed per Steam account).
|Iron||Steam Snowglobe Event|
|Gold||Steam Summer Adventure Event|
Prismatic Aspect: None.
The Wolver Tails have different patterns or particle effects, depending on the color style. Some of the Party Hat accessories also have this "different patterns for different color styles" behavior.
These Wolver Tails seem to most closely resemble an alpha wolver monster's tail, in most cases, respective to their style, because regular wolvers don't have tails that are as shaggy.
Once so far, the Featured Auction House had almost every style of Wolver Tail up for bids at the same time.
Wolver Tails in special styles have been seen in several Supply Depot "Flash Sales."
The Iron Wolf Tail was first made available as part of a Steam event in 2013, which involved crafting Steam Badges to get Snow Globes and various prizes. Since then, there have been other events with other tails available. Even though the steam-related wolf tails in the list are recolors of, and behave exactly like, wolver tails, and might be called "iron wolver tail," the actual name is "iron wolf tail."
The Polar Wolver Tail is shaped differently than the rest of the Wolver Tails.