Dasking Aerial Silk Dance Complete Hardware kit for Acrobatic Flying Dance Rescue Figure 8 & Rope Swivel & Steel Carabiners Preminium Kit! Basic while complete hardware kit for your aerial silk dance which meet climbing standards. BALL BERAING! 30kN rope swivel exerts high strength and is mounted with ball bearing to provides smooth rotation during performance 40kN Rescue 8! The msot connector device for silk, carabiners and swivels. With 40kN breaking strength and thickness, it will stay safe while protect your rope. 2pcs Twist carabiners (22kN/4900lbs) are made of Galvanized steel to provides long lifetime and solidity. Twist ( also called automatic lock ) lock with spring controle will snap and shut the gate automatically once you let off the gate to ensure that the gate is closed.