Sea-Dog Stainless/Nylon Hatch AdjusterConstructed of corrosion resistant formed 304 stainless steel, these hatch adjusters feature a simple twist knob to lock in desired position. UV resistant injection molded nylon mounting pads and knob. Great for use on dock box lids, hatches, windshields, ect.Features: Formed 304 Stainless; Injection Molded Nylon; Easy Grip Handle; Extends from 12" to 18"; Part NumberABCD321295-111-15/16"17-7/8"1-3/8"1-3/16"