Package includes：This breadboard Jumper Wires set contains 840pcs 14sizes U-Shape male to male jumper wires. Wire length 2 mm/0.08" 5 mm/0.2" 7 mm/0.28" 10 mm/0.39" 12 mm/0.47" 15 mm/0.59" 17 mm/0.67" 20 mm/0.79" 22 mm/0.87" 25 mm/0.98" 50 mm/1.97" 75 mm/2.95" 100 mm/3.94" 125 mm/4.92",60 pieces of each Easy to use: Different colour coded, insulated, flexible, rigid jumpers in different lengths, reusable jumper kits combine with any breadboard or anywhere jumpers are needed, perfect for breadboard projects. All jumpers are pre-stripped off Comes with a storage box: easy to carry, you don't have to worry about the storage of these small parts Easy to distinguish: Products are distinguished by red, orange, yellow, green, blue, purple, brown, white and grey Wide applications: Breadboard projects,computers, electronic communications, instruments, meters, industrial program control, digital cameras, MP3, card readers, DVDs, LCM/LCD displays, electronic toys，PCB project, pc motherboard etc