Features: New and high quality. Ideal for home electronics prototyping. Compatible with Arduino and Raspberry Pi projects. Box packaging for easy organization and storage. Includes 1220 pieces of jumper wire connector parts, suitable for electronics prototyping. Designed to work well with standard breadboard-style pin connectors and sockets. Packed in a resealable transparent box for convenient use and storage. Specifications: Material: Copper Color: Black Operating Frequency: Low frequency Package Contents: XH-Plastic shell 2.54mm XHPX-2J – 20 Pcs XH-Plastic shell 2.54mm XHPX-3J – 20 Pcs XH-Plastic shell 2.54mm XHPX-4J – 20 Pcs XH-Plastic shell 2.54mm XHPX-5J – 20 Pcs XH-Plastic shell 2.54mm XHPX-6J – 20 Pcs XH-Plastic shell 2.54mm XHPX-7J – 20 Pcs XH-Plastic shell 2.54mm XHPX-8J – 20 Pcs XH-Plastic shell 2.54mm XHPX-9J – 20 Pcs 2.54mm Straight Single Straight Male Header XHPX-2 – 20 Pcs 2.54mm Straight Single Straight Male Header XHPX-3 – 20 Pcs 2.54mm Straight Single Straight Male Header XHPX-4 – 20 Pcs 2.54mm Straight Single Straight Male Header XHPX-5 – 20 Pcs 2.54mm Straight Single Straight Male Header XHPX-6 – 20 Pcs 2.54mm Straight Single Straight Male Header XHPX-7 – 20 Pcs 2.54mm Straight Single Straight Male Header XHPX-8 – 20 Pcs 2.54mm Straight Single Straight Male Header XHPX-9 – 20 Pcs Connector Pin Female Cable Jumper – 450 Pcs Cable Pin Connectors Male Pin – 450 Pcs Packaging Included: 1 x Plastic Box (contains 1220 pcs Connector Kit) Note: - Please allow 1-3 cm error due to manual measurement. - Colors may vary slightly due to lighting and monitor settings.