2 Separate holders to hold and dry slides and covers slips.
First one designed to hold 10 slides : 25.4 x 76.2 mm (1"x3") - 1/1.2 mm thick
External dimansions : 56 x 80 mm
Second one 20 cover slips : 22x22 mm - 0.13/0.17 mm thick
External dimansions : 56 x 31 mm
The author marked this model as their own original creation.