Amazon.com : STAEDTLER Lumocolor Permanent Pen for Photography Photography Pack of 1 Black : Office Products
Amazon.com : Staedtler Lumocolor 351 Whiteboard Marker Bullet Tip Approx. 2 mm line width, set of 6 markers, made in Germany, can be wiped dry and residue-free by whiteboards, 351 WP6X : Office Products