This kit is made using 1/4" MDF and comes unfinished. They are designed by me using shapes and welding pieces together in a program. 

Approx measurements: 

Large board: 14 1/2" tall x 4 7/8" wide

Medium board with same handle: 10 1/2" tall x 4 1/4" wide

Medium board with oval handle: 9 1/4" tall x 5" wide