Dental Disposable Impression Stainless-Steel Edge Frame Bite Tray - Sideless 35 pcs Disposable Impression Bite Trays with stainless-steel edge frames used to make an impression of a patient's teeth or alveolar process (bony tooth sockets). • Rigid construction with stainless-steel edge frames provides less distortion • Stronger than the plastic tray • More convenient than using the metal tray • Made thinner and longer for higher accuracy of impressions • High Quality Made in Korea