The PERKO Clamp-On Fishing Rod Holder 1118DP0CHR is designed for securely holding fishing rods with a diameter ranging from 3/4″ to 1″. Manufactured by Perko, this rod holder features a height of 34 inches and a width of 4 inches. It is a versatile and convenient accessory for any fishing enthusiast looking to keep their rod in place while out on the water. The clamp-on design allows for easy installation on various types of rails, making it a practical and reliable choice for fishing trips.