Description Each jumper has stripped ends and preformed right-angled leads for easy insertion into your breadboard. These breadboards wires are for use with any breadboard, prototyping, prototype circuits, LED strip, test circuits and etc. The breadboard wire is a little that convenient for changing its shape to do connect test. Features - Color: Assorted Color. - Material: Copper Clad Aluminium Wire. - Size: 17.00X10.00X2.00cm/6.68X3.93X0.79inch. - Wire Length: 2 mm, 5 mm, 7 mm, 10 mm, 12 mm, 15 mm, 17 mm, 20 mm, 22 mm, 25 mm, 50 mm, 75 mm, 100 mm, 125 mm. - Different color-code, insulated, flexible, rigid jumpers in different lengths and can be used repeatedly. - Designed to work well with any breadboards or anywhere jumper wires are needed, perfect for breadboard projects. - Easy to use: all the colored jumper wire are pre-stripped and preformed right-angled, easy to insert it into breadboard. - Extra bonus: come with a free plastic box, keep your jumper wire kit organized, easy to store and fetch. - Note: the breadboard wire is a little so that convenient for changing its shape to do connect test; if you find that it can't be inserted, please check whether the cable in the pin hole of the breadboard is in good condition or not. Different color-code, insulated, flexible, rigid jumpers in different lengths and can be used repeatedly. Designed to work well with any breadboards or anywhere jumper wires are needed, perfect for breadboard projects. Easy to use: all the colored jumper wire are pre-stripped and preformed right-angled, easy to insert it into breadboard. Extra bonus: come with a free plastic box, keep your jumper wire kit organized, easy to store and fetch. Note: the breadboard wire is a little so that convenient for changing its shape to do connect test; if you find that it can't be inserted, please check whether the cable in the pin hole of the breadboard is in good condition or not.