Used for celloidin or paraffin sections, these embedding blocks are made of phenolic resin, which can be marked with a glass marking pencil. Top surface has 1/32" deep grid to provide a firm hold for embedding specimen. Blocks are 3/4" high. Additional Info: Embedding Blocks 1/2" X 1/2" X 3/4", Pk/10 Package Size(L x W x H): 4 X 4 X 1 (IN) Categories: Microscopy, Embedding HTS Code: 3926.90.9910 UNSPSC: 4.11029e+007 Country Of Origin: INDIA