Protect more with the core: Features a steel core that vastly improves accuracy and distance and ensures more breaks on target for better protection High strength shell bursts on impact and creates a cloud of inert powder Made for ultimate force-on-force training experiences Break lines improve performance on impact; Internal wings provide a balanced weight for a truer flight and greater accuracy Compatible with P2P non-lethal self defense airguns as well as most other non-lethal pepper guns