Key by Jopen Mini Stella II Light Blue consists of one set of weighted balls, 30g, 40g and 40g e or approximately 1.05 ounces and 1.41 ounces. One dual ball holder with retrieval loop. Wrapped in body safe silicone. Bulk weight 4 ounces. 1 inch by 4.75 inches overall. 1 inch each ball diameter.