I want a replacement

I hate it when I wash the dishes and couldn't regulate the flow of water.It pissed me for I don't want to waste so much water. The reason the water can't flow slowly is that I lost the little thingy or the stopper of the faucet that makes it hard for me to use the water. I would love to look for kitchen faucets on the internet today so we can replace ours as I don't like it anymore. Wish my husband would help me look for a better kitchen faucet.