By using the CleverSpa Measuring Scoops, you will reduce the risk of over/under dosing your CleverSpa hot tub or swimming pool.Maintaining the correct Chlorine and Ph levels is vital to extending the cleanliness and overall health of your hot tub or pool. Using a designated measuring set for chemical maintenance ensures your hot tub/pool chemicals can\'t contaminate other household measuring equipment.Set includes:1 x 1L Measuring Jug 1 x 100ml Measuring Cup1 x 50ml Measuring Scoop1 x 10ml Measuring Scoop 1 x 5ml Measuring Scoop 1 x Mixing Rod