Safe T Fill® Capillary Blood Collection Tube, 2.1 x 113 mm, 150 µL, 1 Bag of 50 Pill Aids 0mm specula * Pocket Ophthalmoscope Cutters 0mm specula * Pocket Ophthalmoscope features: 5 aperture selections (small aperture large aperture fixation aperture semicircle aperture and red free filter) * 17 lenses from 20 to +20 diopters for better resolution * Illuminated dial * Silicon coated protection of glass components * Built in lens dust cover * Rubber brow rest prevents scratching of eyeglasses * Ophthalmoscope head made from polymid an impact resistant space age thermoplastic * AA metal battery handle interchanges * Comfortable cushioned seat and backrest * Tool free assembly of back legs and arm * New pinch free cover allows for push pins to be depressed without pinching fingers * A frame construction provides stability * Height adjusts in ´ increments with unique Dual Column extension legs * 400 lb The complete end to end fill of the capillary straw accurately measures the stated fill volume and fill lines are printed directly on the microtube