"Complete your door with the UAP Petit Master 10"" White Flap Aluminium Draught Proof Letterbox, designed for compact sizing, reliable performance and a clean modern appearance. Suitable for uPVC, composite and wooden doors 20 to 40mm thick, it is an ideal replacement for most standard letterplate openings.Key Features• Internal & External Flaps: Dual-flap design improves security and provides smooth letter handling on both sides of the door.• Durable Aluminium Construction: Strong, corrosion-resistant aluminium flaps paired with an anti-scratch frame for long-lasting performance.• Patented Anti-Snap Design: Flaps open to 180° for easy access without risk of snapping or damage.• Adjustable 20-40mm Fit: Telescopic structure allows secure installation on uPVC, composite, and wooden doors.• Fast, Accurate Installation: Single fixing screw on each side auto-aligns with the screw boss for a quick, secure fit.• Fully tested to BS EN 13724 and cycle-tested over 100,000 times, this letterplate delivers dependable quality and smooth operation for years to come.• Distance Between Screw Holes: 226 mm• Letterplate Length: 250 mm• Letterplate Height: 65 mm• Letterplate Width: 20-40 mm."