4.5 inches long. Add some style to your smoking experience with Greengo Hemp Plastic Cone Holders! This lot includes 3 each of natural, purple, and green holders, for a total of 9. Made from eco-friendly hemp plastic, these cone holders are a great addition to any smoking collection. The holders are compatible with most cone sizes and make for a convenient way to smoke on-the-go. Whether you're a collector or simply looking for a stylish smoking accessory, these Greengo holders are also biodegradable.