ZDD SUPERIOR MATERIALS: The sturdy ratchet is made of high quality material (nylon blend + metal pulley + aluminum buckle), can ensure strength and durability effectively. Strong enough to support a load capacity of 150 lbs (maximum) per pair. Adjustable Distance: The ratchet bracket is fully adjustable, providing reliable support and proper distance, perfect lighting arrangement, no risk of cracking or slipping, easily raising and lowering the grow light. Easy to use: simply attach the two hooks and pull the free end of the rope until the desired height is reached. You wont have to worry about stretching, slamming back or loosening as it is strong enough, 1/8 sturdy, lockable, tear-proof. Wide Applications:nylon cord for all the height you need for your light fixture, widely used in factory lights, fans, ventilation systems, filters, reflectors, etc. , can be used outdoors or indoors for a long time without worry Equipment your factories need for everyday use This reflector hanging system allows you to raise and lower the light in one movement, the hook will keep your grow light in place when set to the desired height. The material of the rope is characterized by braided polypropylene. And its hook material is characterized by internal gears made of zinc plated steel and metal. Adjustable length and locking design for your comfort, simply attach the quick release carabiner clips to secure or release items quickly and easily. 4-pack 150lb load capacity ratchets, adjustable 1/8 rope brackets suitable for hanging grow lights, tall light fixtures, twinkle bag and ventilation equipment. Instructions: Secure the carabiner with the pulley / gear to the ceiling frame or a firm location; Use the other end of the hook and the cord that connects it to hang items; Pull the rope without the carabiner to adjust the items up; If you need to adjust the height of the hanging object down, press the trigger / clip which is built into the pulley, then pull the rope with the carabiner to the set height. Specifications: The package includes: 4 pairs of Ratchet RopeRope length: 1 meter Warm Tips: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.