This is one RBC F-75 cam follower bearing. It is new old stock in the original rough, shelf worn wrapper. The bearing is 3/4" o.d. x 1/2" wide. The stud is approx 7/16" in diameter x 13/16" long. The stud is not threaded. There is a notch at the base of the stud, presumably for a dowel pin.This package will ship First Class Mail anywhere in the USA. There is a Priority Mail option, if you are in a hurry for delivery. Buyers of multiple listings should wait for my final invoice before making payment. I will always do my best to combine items for shipping savings. Payment is expected within four days of the close of the auction. Thanks for looking.