Colored Timer - Liquid Spiral Tube Timer (x1) Immediate dispatch, estimated delivery date in around 10 working days - not the longer Amazon ETA Please note price is for ONE Liquid Spiral Tube Timer - colors vary. Attractive transparent color spiral tube timer in EITHER red, green OR blue. Attractive, fun timer that illustrates the passing of time (non-specific) as the oil and water droplets twist around the tube. Turn this colorful tube upside down and watch the fat spherical droplets spiral down to the bottom - mesmerising!!! This visual sensory timer is ideal for stimulating discussion on time differentiation, keeping concentration, as a "time out" resource or simply for providing a visual sensory experience.. Height - 15cm Diameter - 5cm