Description: With wide application design, the cyclone tube can be a display in children's room and a educational model in the school. The cyclone tube can help to improve the ability of children at key stages of brain development because of creative design. Made of plastic material, it is durable. The length of the cyclone tube is 49cm, the width is 37cm and the thickness is 0.5cm. It is suitable for education of the physical knowledge to students. Item Name: Cyclone Tube Material:Plastic Size: Red: 4.8cmx3.3cmx3.3cm/1.89inx1.3inx1.3in Blue: 4.75cmx3.2cmx3.15cm/1.87inx1.26inx1.24in Yellow: 4.8cmx3.3cmx3.3cm/1.89inx1.3inx1.3in Purple: 4.85cmx3.2cmx3.2cm/1.91inx1.26inx1.26in Green: 4.75cmx3.2cmx3.2cm/1.87inx1.26inx1.26in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Cyclone Tube