For the formation of huge soap lamellae and thus for an impressive demonstration of surface tension; 
plastic tub: D=approx. 210 mm, H= 20 mm 
Single ring made of plastic, with handle: D=185 mm 
Multiple ring made of plastic, with handle: D=11 x 40 mm, 1 x 100 mm 
Soap solution in bottle with screw cap 
Contents: approx. 250 ml 
Weight of the set: approx. 377 g