Pet supplies for four cats. Scratchers, food, cat litter, cat treats. Cat gate

We have four cats. At this point I cannot get rid of them they are part of our family and unfortunately we have ran into some turmoil and can use some help keeping up with their needs for the moment. We could use a cat gate because our cat keeps running outside which is not safe for him. And just a normal necessities cat scratchers, cat litter always, and cat food or cat treats would be so much greatly appreciated and needed please and thank you.