This building block set LM 222-MY BLOCKS launched by Luminoso will make your child think rationally and build up their creativity. This set, designed with precision and care, is completely safe to use. with a dimension of 6.5 x 3 x 8 inches this set weighs around 342 gms. This building block set packed in cartons of 96 each does not need any battery to work on. Best for kids aged 3 years or above, to add fun as well as enhance learning skills in your child.