The groove in the stem allows air to escape and the contents will flow more smoothly prevents spilled liquid resulting in bubble generation to avoid messy kitchen Different size makes the kitchen funnels easy to stack and helps you save space for your kitchen. The premium stainless steel funnel set comes with a ring clip that holds them together for storage. The handles are designed to handle hot soup and other liquid conveniently to avoid burning hands The kitchen funnel set can transfer canned food, juice, essential oil, beans, salt and fill narrow jars, bottles, flasks, canning, kombucha, , pepper and other dry ingredients and powder. Note: The data are all measured manually, Please allow 1-3cm error due to different light and display, there may be some color differences, please refer to the actual item received.