The high-quality stainless steel funnel makes bottling a breeze! No hands needed! The construction is wide enough to support itself if you need both hands to pour and the downspout is vented to allow air to exit the bottle as you fill it up. The included nylon bottle brush has strong bristles that can help reach those stuck-on bits in hard-to-reach places. For best results, clean out bottles right after you’re done with them!