I agree with the above but these look like they are neither, just "braces" they don't look like they will do much bracing though. Although it is hard for me to see with the available pictures. For an anti anti-roll bar to work it needs an end on either side of the vehicle on the suspension parts and also be mounted to the body on either end. The closer the bar is to being a straight bar the more predictable the response. Thats why racing cars have just spring steel rods with ends on them that are adjustable in the leverage point or of a shape that can be rotated with a blade shape like the Australian "super cars"