Tension rods that go through the drum hoop into the drum lug for tuning your drum. NOTE: Our tension rod lengths are measure is stated from under the head down to the end of the threaded tip, NOT the full overall end to end length..Our rods DO include the metal flat washers. These are sometimes loose, but often captured to the rod for convenience. If you have a specific need for your washers, please call us for direct help. NOTE: size of this rod can vary from 90mm to 94mm, due to supplier variance. NOTICE: It is very common in our industry for black drum parts to have a wide range of color variation from part to part. Example: Hoops and tube lugs may be lighter black-chrome, where rods,lugs and other parts may be a darker solid black. Please contact us before ordering if you have questions about this. All our tension rods have the modern day standard thread of 12-24 and are sold as a single tension rod, not a pack or many.