The Koopman BBs/Capsules are essential spare parts for toys such as pistols and guns. Using these BBs, you can bring fun back to your toys, enhancing the playing experience. Toys of this type contribute to the development of a child's emotional growth, as they promote cooperation and positive competition. Their use has a positive impact on the development of motor skills, as they require coordination of movements with visual discrimination and observation. Through the process of play, the child learns the concepts of "good" and "bad," while also developing social skills, self-confidence, and empathy.