36 mm. Twice the adhesive strenght of regular laminated tapes. For application on various industrial materials and textured surfaces. For PT530/ PT550/ PT3600/ PT9200pc/ PT9200dx/ PT9400/ PT9500pc/ PT9600/ PT9700PC/ PT9800PCN/ PTD800W/PTP910BT /PTP900W/ PTP950NW. Black on white.