Graham-Field Products Eye Charts Style:Rosenbaum Pocket Vision Screener Card, Each Provides cervical spine support while

Provides cervical spine support while promoting natural sleeping habits on the side or back

Improved breathing and swallowing by the opening trachea and esophagus

Medium Fits: 6

Large (NC15825-07) UPC: 768627798372

US not to contain formaldehyde

Graham-Field Products Eye Charts Style:Rosenbaum Pocket Vision Screener Card, Each Provides cervical spine support whileGraham Field Eye Charts: Snellen (1240): Non reflective, matte finish with green and red color bars. 20' distance. The Snellen eye chart is the familiar chart with the big letter or symbol at the top and progressively smaller letters at the bottom of the chart down to 20 20 or better. This is a chart for measuring visual acuity at a distance in other words, how well you can see things that are far away. UPC: 717076035415 Illiterate (1241): Ideal for