Set of 20 pieces glass marbles in assorted color and style. Great for Chinese Checkers, Collectors or a Marble Run that boost your childs hand-eye coordination and develop fine motor skills. Perfect decoration for Vase or fish tank and also good for games, DIY crafts and collecting. Set of game replacment marbles : playing with marbles is a tradition activity that will keep your little ones entertained for hours. Material: Glass Size(Dia) approx 14mm Color: As picture show NOTE: CHOKING HAZARD-Small parts, please use under supervision of parents. Package Includes:20pcs or bag Glass Marbles Note:Due to the manual measurement, please allow 1-2mm differences in size. Note: 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.