Deluxe Geared Fulcrum - 30 Inch pool-steps_Left 2 Foot Offset It is used for Alkalinity

It is used for Alkalinity Test with Talylor Kits

and testing

A Universal Emergency Sign is included

Pro Rebounder Aboveground Combo 72777

Deluxe Geared Fulcrum - 30 Inch pool-steps_Left 2 Foot Offset It is used for AlkalinityA readily adjustable fulcrum is required for competitive diving. A geared fulcrum permits divers to select the right amount of spring for his or her weight and for specific dives. Calibrated markings on the gear holder make it easy for the diver to re set the fulcrum where desired. Smooth, precise adjustments are easy due to the machined gears and freely turning sleeve on the axle. The adjusting wheel is operable by hand or foot for the full 24 inch