Clear. Ludwig Timpani Heads are manufactured to exacting standards and produce the warm tone and resonance that has long been associated with Ludwig timpani. Available in white or clear. Extended Collar heads will fit all Ludwig drums made after 1978, and some professional models manufactured prior to 1978. Regular Collar heads will fit the Standard, Universal, and Machine Series timpani made prior to 1978. Please contact us for help in choosing the correct head size for your timpani. Choose 26"/66cm, 28"/71cm, 29"/74cm, 30"/76cm, or 32"/81cm.