Durable heavy vinyl, measuring 3 feet x 6 feet. Features 3 grommets at the top so that the poster can be hung on the wall (with your own hooks or hardware). King-sized "walk-on" keyboard poster shows 14 piano keys (1 chromatic octave starting at C, plus high C#). Use to illustrate steps & skips, up & down, intervals, chord structure, and more. The reverse side shows the notes of the grand staff (diatonic - C below the staff to C above the staff for treble & bass clefs), with the letter names written between the staves (a line extends from each letter name to the corresponding note). A wonderful teaching aid!