This test tube rack can hold test tubes right side up or upside down for
drying. It is made of kiln dried wood, has six openings of 24 mm diameter
and six drying pins, measures (L x W x H) 240 x 70 x 90 mm and is oil finished.
Comes in Packs of 5
Each wood dowel rotor is made of a 10cm long wood dowel with outer diameter of about 2centimeters. Both ends are turned to reduce the outer diameter to 7mm (3/8"). A 1/2" hole is made in the middle part to house a bar magnet or cow magnet.