Pool Cleaning Kit: This start-up kit includes 1 x Pool Magic+Phosfree Spring and Fall (1 L) and 1 x Metal Free (1 L). One-Step Treatment: Natural Chemistry Hassle Free Start-Up / Closing Kit provides pool owners with a convenient, one-step treatment to prepare your pool for opening or closing using an all-natural formula. Efficient Pool Maintenance: This kit's natural enzymes stay in your pool all winter long keeping water clean and clear, preventing water line and scale build-up, preserving mesh and vinyl pool covers, adding no phosphates, and greatly reducing normal prep work for opening a pool in the spring. Get Your Pool Ready: If you’re in a cold weather area that opens and closes pools, this kit can help. The items included in this kit are designed to decrease the amount of time and effort it takes to either get your pool ready for the off-season or open it back up in the spring. Tested and Proven Effective: Natural Chemistry products are known for delivering reliable results and making water care less complex. Natural Chemistry carries an extensive line of pool and spa solutions that match your unique needs.