Chalk Refill Prochalk Semi-Permanent Size:8oz. With mixer running

With mixer running

Mounting made of aluminum polished mirror style

They are DOT approved in the USA and Canada and are constructed out of a durable non-corrosive polycarbonate material

Comes with a soft grip DuraSoft® handle that provides comfort and reduces fatigue

Chalk Refill Prochalk Semi-Permanent Size:8oz. With mixer runningProChalk Semi Permanent chalk for weather and water resistant lines that hit and stick for a long time but will eventually wear away naturally. Exterior applications include concrete layout, roofing, metal fabrication. PERMANENCY STANDARD HI VISIBILITY SEMI PERMANENT PERMANENT UNLIMITED DYE COLOURS Blue White Lime Orange Yellow Black Red Back Blue Red Bue Red PERMANENCE RANK 1 2 3 4 5 BEST FOR Interior Exterior Exterior Exterior Exterior Exterior