Tena® Extra Underpad, 23 x 24 Inch, 1 Case of 200 Arm Sling Shoulder Immobilizer 5v Halogen Lamp * Lightweight Wall Transformers 5v Halogen Lamp * Lightweight and compact * 5 aperture selections for general and specialist use * 48 lenses for better resolution * Polarized filter reduces corneal reflection * 12 aperture filter combinations: micro small and large spot sizes cobalt blue filter for corneal exams fixation target and slit aperture red free filter and unfiltered halogen Provides temporary soothing pain relief for sore The highly absorbent material is evenly distributed throughout the core Underpad consists of a polyethylene layer combined with sealed edges to ensure leakage protection