The Seca 211 Measuring Tapes with Wall Dispenses. The 211 tapesare made of high-quality paper that have a loop insert that helps insure proper measurement of infant head circumference. The small, space-saving wall dispenser is easy to install /refill and is an ideal solution for birth centers and clinics. Tapes measures in inches and centimeters, 5" (12cm) - 23" (59cm). Ideal for birth centers and clinics.