This set is great! Tired of climbing behind the couch to pull out the cable every time you want to charge your iPhone but then need to charge your portable speaker (Micro-USB) and then your iPad Pro (USBC). This kit allows you to leave the same cable plugged in, but instead the tip stays in your device and attaches to the cable with a magnet. There are 15 different tips. 5-USBc, 5-Micro USB and 5-Lightning. There are also 6 cords! 1-1 foot, 1-10 feet, 2-3 feet, and 2-6 feet The biggest problem people have is getting the tension right. This is not due to the cable or the cable lugs, but to the "charging box" that you use to power the cable. So make sure you're using a power supply with enough voltage to power all your devices (e.g. don't use a tiny Apple box).