Trident 20 Inch Tall Black Magnetic Pool Child Safety Gate Latch | Keyed Alike | TRIDENT-20-BK-KAThe most trusted pool safety gate latch Gate gap: 3 8 in. to 1 1 2 in. Meets pool safety codes Fasteners are included For use with vinyl, wood, or metal gates Search ASIN: B01KECZV52 for round posts Safe notch feature engages so that gate will not open if someone climbs on it Durable nylon polymer construction The Trident latch will not rust or corrode Superior magnetic technology for self latching No jamming or sticking The Trident Magnetic top pull