A30s larger, more visible marks are about three times the size of marks made with standard paint markers. Perfect for construction sites, auto parts, lumber yards and other applications where items need to be identified from a distance User Friendly: While other broad tip paint markers have a barrel that is too wide for comfortable marking, A30s 3/4 aluminum barrel is easy to grip. Greenlabel paint resists outdoor and rough use conditions and dries fast The replaceable tip has good resistance to abrasion Quick Draw Holster makes marking easier: If your job requires marking while moving around or if you are tired of losing markers, A30s quick-Draw holster will make marking easier