Check the listing for details. PLA 3D Printed Black Kubaton Keychain Self Defense Stick. Condition: New. Listed at 9.99 USD. PLA Black 3D Printed Kubotan Keychain Self Newly made and unused. Features a grooved grip for secure handling and a durable hard plastic body. Compact size makes it easy to carry on a key ring or in a pocket. Approx. 5.5–6 inches long (see photos for measurements). No defects or wear. Shipped fast and securely.