The CB-1 is a simple, lightweight Pilots Knee Board. Rigid in construction and finished in durable black leather grain P.V.C. Fitted with spring clip for retention and use of Landing / Approach Plates, Frequency Lists and Log Pads. Includes 2 loops (1 each side) to hold Chinagraph / lead pencils or pens, with a clear plastic flip over protective cover on front, reinforced eyelet to retain stop watch holder, elasticated Velcro-fastening thigh strap and moulded, cushioned back for comfort. Printed white lettering detailing Quadrantal and Semi-Circular rules, Phonetic Alphabet, Morse Code, selected Transponder Codes and Mnemonic Position Report.