Made of high-quality copper wire material, safe and durable to use Healthy materials, safe and non-toxic, durable and dirt-resistant Name: Jumper special wire for breadboard Dimensions: 2mm, 5mm, 7mm, 10mm, 12mm, 15mm, 17mm, 20mm, 22mm, 25mm, 50mm, 75mm, 100mm, 125mm
