The Orange Seal Tubeless Tire Sealant comes with a unique twist-lock applicator, which is a convenient and easy-to-use feature. The twist-lock applicator is designed to prevent spillage and make it easy to apply the sealant directly into the valve stem or through the tire bead. To use the twist-lock applicator, simply remove the cap and twist the lock to the "open" position. Then, invert the bottle and use the applicator to inject the sealant directly into the valve stem or through the tire bead. When finished, twist the lock back to the "closed" position to prevent any leakage or spillage. The twist-lock applicator ensures that the sealant is applied evenly and precisely, reducing the chances of making a mess or wasting any of the sealant. It is a great feature for those who are new to tubeless tire setup or for those who want to apply the sealant with precision and accuracy. The twist-lock applicator is a convenient and practical feature that makes it easy to apply the Orange Seal Tubeless Tire Sealant without any mess or hassle.