Item Type: Oar Lock Socket Holder Material: Cast aluminum Number: 2Pcs Hole Size: 1/2in Mounting: 2 x No.10 screws to mount each socket (not supplied) Package List 2 x 1/2inch Oar Lock Socket Holders 1Suitable Scene: Top mount rowlock socket is suitable for 1/2 inch diameter shank oarlocks. and it is designed for use in sea water. 2Stable Performance:The T shape oar lock support bracket can be used to install an oar lock, providing support and retention of the oar spear. 3Reliable and Secure: The top mount rowlock socket is designed to ensure that the paddle spear remains stable and secure when in use and will not wobble or fall off. 4Durable Construction: Marine oarlock socket is made of premium material, which is hardness, sturdy and durable and has a long service life. 5Easy to Use: Oar lock socket bracket is designed to be easy to use, so you can use it easily, which is convenient and practical for you.