Sturdy and Durable: The plant hook and nylon rope is strong enough to hold a 10kg (Maxium) weight plant or flower basket, no worry about the fastness, the plants or flower baskets will be safe with the adjustable ornament plant hanger holders. Operating Principle: The Plant hooks pulley working priciple is in the opposite way to the seat belt. There is about 8 position. Each position is about 10 cm apart. The rope must be pulled slowly to get stuck in position.When you pull the rope quickly, you will always pull the rope to the end( the rope won't stop in the height which you want to). Easy Installation and Durable: Self-tapping screws hooks, easy installation by hand, easy twist the screw hooks into wood, plywood or drywall and the steel points bite into swiftly without stripping and provide maximum strength and durability Multi Use:Retractable Plant Hanger is designed for holding bird feeder and hanging plants indoor which can be hung high up and be pulled down for feeding or watering easily, the rope and hook are strong, plant or bird will be safe with the pull down hanger. And you can adjust the height without ladder, just pull the rope to adjust. Note: 1. Load capacity from 1.2kg to 10kg, please dont hang less than 1kg goods or dont hang too heavy goods due to plant hanger link up with a internal spring with flexibility. 2.Pull the rope slow and then you can local the plant to the height which you want.