This is a high-quality breadboard jumper wire kit, including 14 different lengths of jumpers in various colors. The kit comes with a transparent storage box for easy access and organization. The jumpers are made of high-quality materials and are perfect for prototyping and electronics projects. The kit includes 14 lines of different lengths, ranging from 2mm to 125mm. The package options include 65PCS, 140PCS, 350PCS, 560PCS, and 840PCS, each with a different number of pieces per length.