High Quality - These test hook clips test lead wires are made of high quality silicone material, silicone could help with longevity and easy of use. Colorful - There are five different colors: red, green, white, black and yellow. So you will not grab the wrong clip when testing and changing locations on the circuit, and enjoy the convenience and practicality of these very useful "minigrabber" jumper clips. Wide Applications - Minigrabbers are absolute necessary tool when you need a third hand or have to test many circuits sequentially, and likely to be the most useful thing on your workbench. No matter youre trying to make a few quick connections to test your circuit or having trouble making your multimeter leads stay where you need them, these test hook clips are a must-have for your workshop. Flexible & Practical - These are flexible, durable and easy to operate, good quality test hook leads that work great for low current testing, light electrical or DIY projects, applications, electronics, circuit boards, etc. Heavier applications will melt these. Size Information - Whole wire length: 23.2 inch/59cm; Test hook clip length: 2.16"/5.5cm; Hook max open length: 5mm. The clips make it easier to grasp the battery you are trying to read, allows hands-free testing, great for remote spaces. If there is any problem, welcome to send us the email.