The Acer AMP2 kit contains a double tipped marker pen along with a holster to keep it securely held on the person when active on site. The Acer Professional Marking Pen has a unique design which features a double tipped nib that can be reversed to draw both thin and thick lines. This is especially useful when marking plans, then materials such as plastics and pipes. The new Acer Site Holster makes the Aer pen or pencil the best marking solution for any construction application. It makes sure the pen / pencil is always to hand, easily findable, and has a set location to slot the marking tool back into quickly and simply after use. Additionally it helps protects the pen or pencil from accidental damage in construction environments. Features and Benefits • Professional marking pen with thick and thin nibs • Ideal for writing on and marking both plans and materials with the same pen • Sturdy stainless steel shaft provides protection for the nib and allows marking through deep holes • Erg