WDK-102 is a 2 inch wide, single plank margin/border. It features a groove on one side to receive the tongue of another piece and a beveled edge on the opposite side for a finished look.
It comes on a roll that is 10 meters long ( about 32 ft. 8" ) It is used for straight or gentle curved outside edges of your custom mat.
A good idea is to measure all lengths and widths of your mats, add the total length together and add between 5 and 10% for cuts, waste and possible mistakes.
It is sold by the lineal ft. ( 6 lineal ft is the equivalent of 1 sq. ft )