Flaw & Crack Pen Provides A Precise And Effective Solution For Cleaning Flaws And Cracks And Essential For Maintenance And Repair Tasks. Heres Why Its A Valuable Addition To Your Toolkit The Precision Application The Pen Design Allows For Precise Application And Ensuring Targeted Cleaning Of Flaws And Cracks. Effective Cleaning: Formulated To Clean Flaws And Cracks Thoroughly And Preparing Surfaces For Repairs With Optimal Adhesion. Suitable For A Variety Of Materials Including Metal Or Concrete Or Wood And Plastic Making It Ideal For Various Repair Applications. ** The Pen Offers Ample Cleaning Solution In A Compact And Easy To Use Format Perfect For On The Go Repairs: Dries Rapidly To Minimize Downtime And Allowing For Efficient Workflow During Repair Tasks. Residue Free: Leaves Behind No Residue And Ensuring A Clean Surface Ready For Further Treatment Or Repairs.