The MagnaLatch Series 3 Top pull magnetic safety gate latch model is designed and suitable for taller pool gates as well as for gardens and household gates. The built-in lock helps to prevent unauthorized entry into your yard or pool and cannot be shaken open. MagnaLatch Series 3 includes a new visible lock indicator, 6-pin re-keyable security lock, vertical and horizontal alignment indicators, and much more. It's been tested to 2 million cycles and it's 50% stronger than before. Simply put, it means you can recommend and install the new MagnaLatch Series 3 with confidence knowing that it's the world's #1 child safety gate latch. Constructed of industrial strength "metal replacement" polymer & stainless steel components that withstand the harsh effects of both time and weather. Manufactured and continuously tested in D&D's facilities, under ISO9001 quality standards, MagnaLatch consistently provides the highest level of quality and performance available. Always confirm local fence/barrier regulations before installation. Fits standard gate to post gaps of 1/2" to 1-1/2" (13 - 38mm) for metal, wood or vinyl gates. Gate gap spacer allows for larger gaps 1-1/2" to 2". Limited Lifetime Warranty.