Miltex Schiotz Tonometer is a time tested instrument. Routine tests for glaucoma can easily be made with the Schiotz Tonometer and at a lower price than other tonometers. The anterior chamber preasure test is a must in the general examination as well as a routine eye exam. Inclided scale permits reading from above. The WO-511 Shiotz Tonometer is U.S. Certified. High qualify German-made construction with jewelled hammers to minimize friction. Supplied with 3 weights, 5.5g, 7.5g and 10 gram, Stainless Steel Plunger, Footplate, and Test Block in fitted Carrying Case.