Quadtro Select Wheelchair Cushion 16 x 20 X4.25 #N A The angle of incline can Undercast Padding The angle of incline can easily be adjusted to 10¯ 15¯ or 20¯ as advised by a healthcare provider * Patented hand pump makes it easy to increase or decrease traction force * A quick release button is conveniently located next to the high quality guage on the hand pump * Pushing the quick release button allows the user to either lower the force to attain proper traction or release the traction force completely * Contouring memory foam headrest cradles the head for maximum comfort throughout your treatment * Forehead strap assures a comfortable and appropriate fit during treatment * Two adjustable clips on the back of the unit allow each wedge to be moved in or out to provide a custom fit * 5V Pocket Scope Ophthalmoscope uses halogen light for true tissue color and consistent long lasting illumination * Model 12800 is lightweight and compact and comes with a rechargeable handle and has five aperture selections for general and specialist use * 48 lenses for better resolution * Its polarized filter reduces corneal reflection * Plus 12 aperture filter combinations for greater versatility: micro small and large spot sizes cobalt blue filter for corneal exams fixation target and slit aperture plus red free filter and unfiltered halogen * 2 * 3 year limited warranty