The Standard Vessel holds 800 ml of liquid nitrogen. The shape of this foam dewar is circular, with a protruding handle, so that it resembles a large teardrop. Each bowl shaped vessel comes with a matching foam lid to insulate the contents from ambient air. The price per unit is $110. The dimensions of the cylindrical cavity in this standard size vessel are 5.8 inches in diameter by 2.8 inches deep.
 
Spearlab foam dewars are effective and durable vessels for handling liquid nitrogen and cryogenic materials. They have gained acceptance as the preferred containers for x-ray crystallography samples, and also are used in a wide variety of other cryogenic applications. Unlike conventional glass and stainless steel Dewar flasks which depend upon a vacuum layer for insulation, Spearlab foam dewars use a fine closed cell foam for insulation. This foam material is chemically inert and mechanically durable enough to be exposed directly to liquid nitrogen, without leaking or degrading.