This is a hard-to-find Super Uketaro 240! I have two of them, but this one has only been used once, so I'm selling it. This is an excellent rod holder that works for a variety of situations, from breakwaters to fishing park bars! The only downside is that it's a bit heavy, but it's very sturdy, looks great, and is extremely reliable! Effective mounting width: 50-240mm, made of amorphous resin. [The following is the manufacturer's description] This is a super-wide version of the Super Uketaro with a mounting width of 240mm, allowing it to be mounted on everything from wide boat edges to car stops! With vertical mounting, the rod holder can be set on both sides of the support, allowing you to easily operate the rod and reel at waist height. Simply opening and closing the lever locks the rod butt receiver, preventing the rod from falling out. This provides peace of mind during breaks and in strong winds. Of course, the rod butt receiver rotates 360° and can be used for right-handed and left-handed setups.