The Yakima Q-Clips are an essential part to personalizing your rack system. Each Q-Clip is designed for a specific make and model of car. To help ensure a proper secure fit of your Q-Tower system, make sure you consult yakima.com or us. Without this piece of gear your rack system will not feel snug as a bug in a rug. So make sure you pick up your Q-Clips when you are ordering the rest of your system.