Hy-Ko 5-inch Black on Yellow Reflective Number 3 — Weather-Resistant Sign

Overview

Meet the Hy-Ko 5-inch Black on Yellow Reflective Number 3, a durable outdoor signage solution designed for visibility in challenging conditions. The bold black numeral rests on a bright yellow reflective background, delivering strong contrast under daylight and across low-light hours. Its weather-resistant construction helps it endure rain, wind, and seasonal temperature shifts, making it suitable for both mailboxes and fence posts.

Key features

• Size: 5 inches for clear, distant legibility.
• High-contrast black on yellow reflective background for day and night visibility.
• Versatile use on mailboxes or posts to mark addresses or property features.
• Adhesive vinyl material for quick, tool-free mounting.
• Weather resistant and durable for outdoor environments.

Real-world scenarios

Imagine a dim street after dusk: the yellow reflection catches the car headlights, drawing attention to your address. In rain or fog, the bold number remains legible, helping visitors or responders locate you faster. The adhesive backing makes it possible to attach the sign to a clean, smooth surface in minutes—no screws required.

• Night-time navigation: easier for guests, delivery drivers, or service professionals to find your location.
• Rugged weather conditions: resilient against rain, snow, and wind while maintaining visibility.
• Mailbox and post use: a compact, unobtrusive sign that stays practical without overpowering exterior aesthetics.

Material and durability

The sign uses durable adhesive vinyl designed for outdoor life, resisting peeling and fading. The reflective surface provides daytime contrast and nighttime brightness under headlights and streetlights. It is built to last, with replacements available if your address or signage needs change.

Why choose Hy-Ko

Hy-Ko delivers straightforward installation and reliable outdoor performance. This 5-inch reflective number emphasizes essential information using a proven color combination that remains visible across varied lighting conditions. Results can vary with mounting surface and weather, but many users report satisfying upgrades to address markers.

Care and maintenance

• Surface prep: clean with mild soap and water before installation.
• Avoid touching the adhesive backing until you’re ready to mount.
• Wipe the sign occasionally to maintain brightness and legibility.