OX Pro 40oz/1.1kg Permanent Red Marking Chalk Permanence 3, Ideal for Weatherproof Markings lasting upto 1 month, General Construction Line Refill Powder Reels

PERMANENT RED MARKINGS — Permanence Level 3 chalk delivers bold, fade-resistant lines that last up to 1 month outdoors through rain, sun, and harsh job site conditions BULK 1.1KG SUPPLY — Large 2.5lb container reduces refill frequency on large-scale construction, groundworks, and fit-out projects — ideal for continuous professional use MULTI-SURFACE ADHESION — Adheres cleanly to wood, concrete, plasterboard, metal, and stone; high-flow nozzle tip ensures smooth, consistent chalk flow for accurate layout lines ADVANCED MOISTURE SEAL — Industrial-grade quarter-turn cap locks out moisture to prevent caking and maintain powder consistency throughout the container's life COMPATIBLE WITH ALL STANDARD CHALK REELS — Universal quick-fill nozzle fits OX Pro chalk reels and most other trade chalk line tools for fast, mess-free refilling