This is a DFRobot exclusive! This is a high quality jumper cable. Hand made with 22AWG multistring wire and sturdy male pins. Each jumper cable has an approximate 210mm length. Each pack comes with ten jumper cables(different colors available). These jumper cables are perfect for bread boards, Arduino, or any other application where you might be frequently plugging and unplugging jumper cables. These cables are very resistant and have a stiff durable pin which is tough to bend or break when being inserted. Length: 214mm +/-3mm(8.43+/-0.12") Cable Gauge: 22 AWG multi strand. Envionment Friendly: Rohs Compliance Breadboard Jumper Cables High Quality (30 Pack) x1