The Plant Pulley is designed for holding decorative hanging baskets in the garden,A practical accessory for home gardening, convenient to use. Great for use at the balcony, allowing you raise and lower hanging plants and baskets freely Note: How to Block on different height: 1. Take out the hook, 2. Pull the rope on desired height ,if it had not block ,do not immediately let go the hand , 3. To the slowest speed (Suggestion 10mm/s),retake or pull about 1cm-3cm to block it, 4. You need to shake the pulley when the hanger cord is not locked.Because there's a catch marble in the pulley. The hook's using method is opposite with the seat belt . Material: Plastic Color: Black Dimension: 10 * 8cm Stretching length: 20-90 cm Load weight: 1-15 kg, weight less than 1 kg can not be fixed freely