This is a set of 10 USED United Pins number U4. These are bowler/shuffle pins. The pins are 10″ tall and the hole spacing is 1 7/8″. Please note and verify the hole spacings and verify with your machine first and look at all pictures carefully before choosing which set you would like to purchase. There may be some discoloration of the pins due to age. Please include the letter and number with your order as to make sure you receive the pins that you picked. We cannot combine shipping with other items.