Each RecyClave is 1-inch diameter and is comfortable to grip. They are 7 inches long and produce a mellow 'Tok’ sound that is still full enough to compete in an ensemble. Composed of recycled plastics, these calve are light enough to be played for hours, inside or out of doors. Great percussion item for a classroom, community center or organization. There are 6 green pairs and 6 cedar colored pairs in the full set. 7 x 1.2 x 1.2 inches each.