Dasking Aerial Silk Dance Hardware kit for Acrobatic Flying Dance Rescue 8 & Swivel & Carabiners Preminium Kit! Basic while complete hardware kit for your aerial silk dance which meet climbing standards. 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 carabiners (25kN) provides long lifetime and solidity.