https://www.amazon.com/CUESOUL-Combo-House-Pool-Sticks/dp/B01K9F3K0M/ref=sr_1_8?crid=SUP3F629E01J&keywords=cuesoul%2Bpool%2Bcue&qid=1680556941&sprefix=%2Caps%2C421&sr=8-8&th=1

It's the black butt on the right. There's no pin description, and one review says it's 5/16x18 but I know that's not true.