around $8.00 a tablet no value for the money but they last almost a weekJust got these after a slight delay. They are about the size of a "fat" aspirin. I did not count them all but it looks like probably several hundred. I plan to use them in an outdoor fountain that circulates about 6 or 7 gallons of water. I put one in to see how long it will last. I think they are okay for a small fountain use.One of those gotcha moments! I couldn't believe how tiny the container was after paying about $25 for 300 tablets, good deal, yeah right, they need to send me that big bucket I'm waiting for, I didn't know bird baths had tablets.This is deceptively small. The container is about 3 inches high. Says there's 150 in each container. There is no way this would help even the smallest pool. It's a total rUnless GI Joe is hooking up with Barbie in a hot tub don't buy, very small and useless.Extremely small "tablet". Waste of money. Ships from China.False advertising, size of baby aspirinYou should be ashamed to let this vendor sell on Amazon!Don't know yet it's not time to cold for pool