The Klein Tools 5817 Multi-Functional Bull Pin Holder allows users to customize their toolbelt and is designed for ultimate adaptability. Users are provided with a tool that is crafted from rugged full-grain russet leather and reinforced with brass rivets for extreme durability. This holder securely accommodates bull pins and spud wrenches with an outer ring to give users the freedom to use it for tool storage or tethering, providing unmatched convenience or safety on the job.