http://www.alfinemed.com/histology-consumables/cassettes-histology/ Cassettes Histology factory Features ATC-Base Cassettes without lid are made from high dennsity acetal polymer, with 34 round holes of diameter 2mm. They are designed to accept our standard stainless steel lids of ATC-Lid. ATC-Base are totally resistant to the solvents used in histological processes and possible to write on. ATC-Ring Embedding rings are suitable for holding and identifying tissue sample blocks and fit well in micro tome chuck adapters. The etched writing surface on the ring is marked with an identification number and placed on top of the sample block. ATC-Det Cassettes for tissues detachable with hinged lid are designed to hold tissue specimens during processing, embedding and storage. Each part of this type have 64 holes of approximately 0.76x5.06mm. The writing area of 45掳 is suitable for most automatic labelers. ATC-Int series Cassettes for tissues with one-piece integral lid have 64 holes of 1x5mm in base and lid. This type can simply snap apart and lock the lid into the base of cassette in order to relock securely without danger of specimen loss. The 45掳 degree labeling surface can be used with most labeling instruments. Specification Cat# Material Size(mm) Holes Angle ATC-Base POM 40x28x6 34 45掳 ATC-Lid Stainless Steel 40x28x6 34 No ATC-Ring POM 42x28x6 No No ATC-Det POM 42x28x6 128 45掳 ATC-Int1 POM 40x28x6 128 45掳 ATC-Int2 POM 40x28x6 128 45掳 Cassettes Histology factory website:http://www.alfinemed.com/histology-consumables/cassettes-histology/