Liquid containing barrel is a transparent plastic cylinder, the internal diameter of the shell is not less than 95mm,depth is not less than 285mm. The product is composed of a liquid container, a floating body and accessories. Floating body is composed of a diving boat model, buoy, a counterweight body. The floating body can be floating, suspended, or sinking state in a liquid. The submarine size about 100 x 30 x 35mm; float size:φ40mm×100mm?The counterweight body is composed of 4 supporting and weights 20 grams ; accessories include skin tube clamp, density meter, sucking ball etc.
....
