Features: Each jumper wire has stripped ends and preformed right-angled leads for easy insertion into your breadboard ,all the colored jumper wire are pre-stripped and preformed right-angled, easy to insert it into breadboard. Designed to work well with any breadboards or anywhere jumper wires are needed, perfect for breadboard projects these breadboards wires are fine for use with any breadboard, prototyping, prototype circuits, test circuits and etc. Contains 14 lengths to suit different needs. It's a quick and easy way to build your own breadboard circuit. With a storage plastics box for easy carrying. Specifications: Type: 140pcs, 560pcs, 840pcs (optional) Length: 2mm, 5mm, 7mm, 10mm, 12mm, 15mm, 17mm, 20mm, 22mm, 25mm, 50mm, 75mm, 100mm, 125mm (all included) Material: plasticsandPEandmetal Package size: 140pcs: 160 x 52 x 15mm or 6.3 x 2.0 x 0.6in 560pcs: 170 x 95 x 22mm or 6.7 x 3.7 x 0.9in 840pcs: 170 x 100 x 22mm or 6.7 x 3.9 x 0.9in Package weight: 140pcs: 53g or 1.9ounce 560pcs: 104g or 3.7ounce 840pcs: 136g or 4.8ounce Packing List: 140pcs set: 10 x 2mm Long Jumper Wire 10 x 5mm Long Jumper Wire 10 x 7mm Long Jumper Wire 10 x 10mm Long Jumper Wire 10 x 12mm Long Jumper Wire 10 x 15mm Long Jumper Wire 10 x 17mm Long Jumper Wire 10 x 20mm Long Jumper Wire 10 x 22mm Long Jumper Wire 10 x 25mm Long Jumper Wire 10 x 50mm Long Jumper Wire 10 x 75mm Long Jumper Wire 10 x 100mm Long Jumper Wire 10 x 125mm Long Jumper Wire 560pcs set: 40 x 2mm Long Jumper Wire 40 x 5mm Long Jumper Wire 40 x 7mm Long Jumper Wire 40 x 10mm Long Jumper Wire 40 x 12mm Long Jumper Wire 40 x 15mm Long Jumper Wire 40 x 17mm Long Jumper Wire 40 x 20mm Long Jumper Wire 40 x 22mm Long Jumper Wire 40 x 25mm Long Jumper Wire 40 x 50mm Long Jumper Wire 40 x 75mm Long Jumper Wire 40 x 100mm Long Jumper Wire 40 x 125mm Long Jumper Wire 840pcs set: 60 x 2mm Long Jumper Wire 60 x 5mm Long Jumper Wire 60 x 7mm Long Jumper Wire 60 x 10mm Long Jumper Wire 60 x 12mm Long Jumper Wire 60 x 15mm Long Jumper Wire 60 x 17mm Long Jumper Wire 60 x 20mm Long Jumper Wire 60 x 22mm Long Jumper Wire 60 x 25mm Long Jumper Wire 60 x 50mm Long Jumper Wire 60 x 75mm Long Jumper Wire 60 x 100mm Long Jumper Wire 60 x 125mm Long Jumper Wire