RIPPLE TANK ADVANCED WITH PROJECTION SCREEN 220V Coating_Vinyl this rare dinosaur era fossil collection this rare dinosaur era fossil collection exposes students to prehistoric life forms for biology and earth science lessons Temperature range (can be placed in): The complete set comprises of Vibration Generator Ripple Tank Wave Monitor unit Projection Mirror Projection Screen Footers with adjustment screws Wave Dippers Perspex Objects Lever arm and support No Need for Separate Overhead Projector Electronic strobe and control Inbuilt projection screen for easy view Foam beaches on tank Wave Generator unit Full range of accessories are included This advanced ripple tank from EISCO comes complete with all accessories needed for wave investigations The frame is made of reinforced plastic and with foam beaches ( to negate reflections)