Hi thanks for replying but there is no ball. This is not a kitchen faucet it's just the stems (and grommet and spring) for a bathroom faucet. I know what you mean about a Delta ball because I also did some kitchens. But this is just the stem. It looks like this: https://www.amazon.com/Replacement-Delta-RP25513-RP4993-Spring/dp/B06WD7KLDV/ref=sr_1_4?ie=UTF8&qid=1545875207&sr=8-4&keywords=delta+faucet+replacement+stem