The Sachtler S2080-0003 Adaptor to mount aktivTM 75 mm fluid heads with SpeedSwap base on a slider with 3/8 " mounting stud or any other product with 3/8 " attachment. Switch between tripod and slider in seconds with the revolutionary SpeedSwap system. Stay fast for ultimate creativity. All aktiv fluid heads feature the unique SpeedSwap system, allowing lightning-fast camera swaps from a tripod to a slider without missing a beat. The perfect camera movement is just a SpeedSwap away.