Aerial Silks Hardware Set by Kurma, Swivel, Figure Eight, 2 Steel Lock Carabiners Aerial Silks Hardware Set for Aerial Dance, includes 1 x Swivel, 2 x Carabiners and 1 x Figure 8 Descender. Highest rated, heavy duty hardware for safe aerial set-ups Includes 2 Steel Screw Lock Carabiners in Red 5620 LBF - Used to clip to ceiling / rigging attachment Includes 1 Aluminum Rescue 8 / Descender 6744 LBF - Used to securely tie your Silk Fabric Includes 1 Aluminum Mountaineering Swivel 7194 LBF - Used between the two carabiners to prevent your silks from twisting Excellent value! There is no risk to try out this heavy duty rigging from Kurma Yoga