Check the listing for details. Pair - Garage Door Low Headroom Quick Turn Brackets with Premium Nylon Rollers. Condition: New. Listed at 30.00 USD. Quick Close Fixture With 4 Nylon Roller of Premium Quality 14 GaugeReduces headroom requirementby up to 2-1/2"Zinc Plated2" 13 Ball Nylon Rollerw/ 4" Steel StemBrackets measure 18" x 2-1/2" If you need a few extra inches of clearance, these quick turn brackets are what you need!WARNING: All products are sold subject to the following Warnings and Cautions and with the express understanding that the purchaser and/or user are thoroughly familiar with their proper use. Indus Hardware Supply Co. assumes no responsibility for the use, misuse or misapplication of its products.Garage Door Cables, Springs, and attachments are under significant load and installations, adjustments and replacements should be performed only by a trained professional. Spring containment cables should be used in conjunction with Extension Springs. Aircraft Cables are not suitable for use in aircraft controls.