The Dabber Dock V2 Carb Crib is perfect for anyone who uses bubble - style carb caps, UFO - style carb caps, or marbles. It's great for home use or when you're on the go. You can keep your carb caps within easy reach and protected. The holder measures 1.5a W x 0.87a H and is made of 100% silicone, which is heat - resistant and can be easily cleaned with isopropyl alcohol and a paper towel.