"This UAP Slimline 12"" letterplate is designed for secure, durable and draught-proof performance on composite and wooden front doors. With a slim, modern profile, anti-vandal features and a scratch-resistant matt frame, it offers long-lasting reliability and a clean finish. The patent-pending self-aligning screw boss and 40-80mm adjustable fit ensure quick, accurate installation, while outward-facing brushes and a built-in water seal provide enhanced security, insulation and weather protection.Key Features• Durable Aluminium Construction: Lightweight, corrosion-resistant aluminium ensures strong, long-lasting performance.• Internal & External Flaps: Dual-flap design improves door security and allows smoother letter handling.• Anti-Vandal Protection: Outward-facing brushes deter tampering and stop unwanted items entering the cavity.• Fits 40-80mm Doors: Suitable for composite and wooden front doors within standard UK door thicknesses.• Overall dimensions: 300mm x 50mm with a 247mm x 28mm cavity opening for easy replacement.• Scratch-Resistant Matt Frame: Helps conceal light marks, keeping the letterplate looking clean and new.• Easy Installation: Patent-pending self-aligning screw boss ensures fast, accurate fitting of inner and outer frames.• Secure Blind Bolts: Prevent the outer frame from being unscrewed from outside the property.• Draught-Proof Brushes: Outward-facing brushes reduce draughts and improve energy efficiency.• 180° Opening Flap: Ultra-flexible springs allow smooth opening without snapping or strain.• Weather-Resistant Seal: Internal water seal prevents moisture ingress and protects the door and posted items.• Guarantee: 5 years."