These sliding spring hooks can be used with suspension rods of 2 and 3 mm. You will see three different versions of sliding springs that you can use if, for example, you want to hang several objects under and next to each other. In this case on round rods hanging on a J rail.
Due to the clamping action, the sliding springs remain suspended at the desired height. You can easily adjust the sliding springs with your hand by first squeezing the spring, then moving it and releasing it when the correct height is found.
You have the choice between three different carrying capacities.