Features:Helps prevent algae and increase the clarity of the water.Provide a constant chlorine dose.Reduce the amount of algaecide and flocculant you use.Contains cyanuric acid (stabilizer) so it is not degraded by sunlight.Place the floating dispenser in 10 pieces of water every 4,500 liters (1,000 liters). If you have a groundwater pool, put the tablets in the basket and it is easy to melt in the water at a faster rate.Notice:When using the swimming pool, the floating water dispenser must come out of the pool.Do not put the plates directly into the pool as they will damage the liner.Specification:Quantity:50 PcsUsage: For every 10 particles containing 1000 kg of water, use with watering can, you can use it directly.includes:1 Bag(50 Pcs) x Chlorine Tablets About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.