MOU-600b - Virtually Indestructible Mouse - Black $19.99 MOU-600i - Virtually Indestructible Mouse - Indigo $24.99 MOU-500m - Virtually Indestructable Mouse - Multi-Color $24.99 MOU-500T - Virtually Indestructible Mouse - Tangerine $24.99 MOU-500Y - Virtually Indestructible Mouse - Yellow $24.99