1、Bracket Head Material: The bracket head is made of ABS and stainless steel, which is strong, durable and lightweight, anti corrosion and rust proof. 2、Bracket Head Specification and Function: U shaped head, front opening is 40mm/6in, length is 75mm/0in. To protect the fishing rod from wear and tear, and increase the performance of the anti slip clip, the rod is not easy to slide. 3、Crossbar Bracket Material: The crossbar bracket is made of aluminum alloy material, which is strong and durable, has a long service life, and can be used for a long time. Surface with black coating, suitable for various environments. 4、Easy to Install: The plastic sea rod holder has standard threads with rubber washers on the threads that compress when tightened for easy attachment to all fishing rods while maintaining a tight seal. 5、Universal Thread: Universal thread design for nearly all types of bite alarms and docking brackets for a variety of pole rack applications. Compact and portable, rod holder can be carried outdoors without taking up much space.