Kenrick Standard Espag Gear Features & Benefits The espagnolette locking mechanism is designed to meet the exacting requirements of the UK market. Simple to install. Robust unhanded die-cast gearbox, Patented Technology. BBA approved - Supported by an insurance-backed guarantee scheme. Fits most Eurogroove systems. Profile related keep with night vent facility. 10-Year guarantee.Box Quantity: 20. View the full product datasheet here.