Unicorn Slikstik Dart Stems. Ultra Longlife 21st century material. Retains shape and flexibility. Perfect in-flight balance. Easiest possible side-load action. Flight held securely. >Built-in flight protector. Each pack contains 3 stems. Unicorn Slikstik Nylon Dart Shafts – Side Loading – BlueUnicorn Slikstik Dart Stems. Ultra Longlife 21st century material. Retains shape and flexibility. Perfect in-flight balance. Easiest possible side-load action. Flight held securely. >Built-in flight protector. Each pack contains 3 stems.