Experiment with new weights with the Viper Bobcat Adjustable Soft Tip Darts. These unique darts use an adjustable add-a-gram system so their weight can be adjusted between 16, 18, or 19 grams. When playing without a weight on, these darts will weigh 16 grams and use 1/4? dart tips (not included). Depending on the add-a-gram set you use, the darts will weigh either 18 or 19 grams and use 2BA dart tips. This soft tip dart set comes with three fully assembled darts, a dart wrench, 6 add-a-grams, three extra 2BA tips, three flight protectors, three nylon shafts, three extra flights, and a deluxe dart pal case that can hold everything included.