Material:Made of high quality materials covered with heat-insulating plastic boots to make the use safer Good performance and light weight. It is a good replacement for plug hooks in electronic products or laboratory tests. Easy to install, remove the rear cover, you can easily connect multiple measuring devices or DC and easily connect multiple measuring devices via measuring cable. Perfect electronic components with multimeter and other electronic component testers help test ICs (integrated circuits) or repair mobile phones and other small electronic products. Spring loaded mini hooks hold small parts securely to avoid short circuits. You can also connect a surveillance board or another port. Colour: red+yellow+blue+green+black Material: Plastic Package Contents: 90 x electric test hooks (18 for each color) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.