This friction set LM - 102T from the house of Luminoso available in vibrant colours of sky blue, yellow, blue and orange will make your child love it. Packed in a carton of 240 pieces each weighing 110 gms, every individual set has a dimension of 7.5 x 3 x 2.5 inches. It does not require a battery and is safe to use. Children of 3+ year age group can easily be provided with this as a learning tool and develop their analytical skills.