Easily attached to the CHASING M2 underwater ROV, this Robotic Arm can be used to retrieve items, collect samples, etc. as deep as 328'. The claw opens to 4.7" wide in 1.5 seconds, and the arm has a gripping force of up to 6.6 pounds and a dragging force of 26.4 pounds—greatly expanding the potential for underwater activity with your M2 drone. You can adjust the grip and drag force with the same app you use to control the drone itself. The arm weighs less than 2 ounces underwater, so its effect on the buoyancy of the drone is minimal.