You need to shake the pulley when the hanger cord is not locked and always down Can "stop" the length at any point you want How to Block on different height: 1. Take out the hook 2. Pull down the rope perpendicularly to the ground 3. You cannot block in different height if less than 1KG 4. Pull the rope on desired height ,if it had not block ,do not immediately let go 5. To the slowest speed (Suggestion 10mm/s),retake or pull about 1cm-3cm to block it 6. The hook's using method is opposite with the seat belt 7.Slowly pulling strings to make it block in the hook of erecting 8.Max Weight: under 10kg First, you need to ensure the hanging hook is vertically down(if not it will not work). When you need to locate the plant at a position you want please pull the strap slowly, and then it will get stuck(there are about ten stop points) The plant hanger is mainly designed for indoor hanging plant and can't work properly in the wind outdoor. TIHOOD 2PCS Plant Pulley Hanger TIHOOD 3PCS Plant Pulley Hanger with 3 Ceiling Hooks TIHOOD 4PCS Plant Pulley Hanger with 4Ceiling Hooks TIHOOD 6PCS Plant Pulley Hanger with 6Ceiling Hooks Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 3.7 out of 5 stars 930 4.0 out of 5 stars 221 3.6 out of 5 stars 191 4.1 out of 5 stars 341 Price $14.99$14.99 $14.99$14.99 $15.99$15.99 $22.99$22.99 Quantity 2PCS 3PCS 4PCS 6PCS Material Plastic and Steel Plastic and Steel Plastic and Steel Plastic and Steel