This is a swimming pool chemical kit put together to keep things simple. The Relax small buoy is a disposable floating dispenser which contains chlorine with stabiliser, algaecide and a clarifier. All you need to do is cut the required amount of nipples off the dispenser and float in the swimming pool. Test with your chlorine test strips and maintain correct levels.
One - Relax Small Buoy Dispenser 1KG -
One - Aquachek Chlorine Test Strips - pack of 50