Vardhaman I.Q. Toys Mfg. Co. Manufactures Set of Knob Less Cylinders Sensorial Material Game. Vardhaman I.Q. Toys Mfg. Co. Offers wooden educational toys for children. Set of Knob Less Cylinders Sensorial Material Games include a set of four boxes with cylinders. The red box of the game consists of cylinders with decreasing diameter. This Set of Knob Less Cylinders Sensorial Material Game helps to develop independence, confidence, observation, order and orientation abilities in kids. They are used to compare the differences and similarities in cylinders from all four boxes that are used to teach the young ones about the awareness of three dimensions of matter and four linear possibilities in kids. Set of Knob Less Cylinders Sensorial Material Games promote and develop awareness of possibilities of variation in three dimensions of cylinders among children. They are used to educate 3 yrs and above age groups of children. Set of Knob Less Cylinders Sensorial Material Games are available in variable sizes and in approx 55mm to 10mm diameter with the height of 55mm. The Set of Knob Less Cylinders Sensorial Material Games weighs 340 grams.