Ripple Tank, Mini (Each) Exercise_Health_Fitness Each tray comes with 4

Each tray comes with 4 double-sided mats which slide into the tray

this chair provides flexibility in style and functionality

Children swirl

The moment you let go the handle

Now supplied with gig bag

Ripple Tank, Mini (Each) Exercise_Health_Fitness Each tray comes with 4Lascells Compact Ripple Tank Self Contained . Easy Set up . Saves Time This compact unit provides an elegant method of demonstrating the wave phenomena of reflection, diffraction, refraction and interference with none of the setting up problems usually associated with ripple tanks. The concept has been further developed to offer new features and simplicity in this MkIII design. The unit is completely self contained with the translucent viewing screen