Jumpers Schmartboard jumpers are for connecting Schmartboards with breadboards, and can be daisy chained together for longer lengths. They are available in 7, 9 and 12 inch Male to Female jumpers in quantities of 10 or 100 with or without 40 headers included. Packs of assorted 5, 7, 9, and 12 inch male to female jumpers are available in quantities of 5, 15, or 25.