It’s a kids splash pad

VISTOP Non-Slip Splash Pad for Kids and Dog, Thicken Sprinkler Pool Summer Outdoor Water Toys - Fun Backyard Fountain Play Mat for Baby Girls Boys Children or Pet Dog (67") https://www.amazon.com/dp/B0899WTH85

u/Nova_Spec_Ops solved it with the comment above. Link to the original post

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.