Rack and Test Tube Set, 25 X 150mm, 6 Piece
A set of six 25 x 200mm glass test tubes with matching rubber stoppers and a matching rack.  The test tubes are laboratory grade Borosilicat glass, with rims.  The rack is made of Polyethylene chemically resistant, lightweight and nearly unbreakable polyethylene, a good choice for classroom use. Rack has 6 25mm holes, 6 vertical drying pins. Size is 9 1/2" x 3 5/8"