Item Type: Oar Lock Patch Material: PVC Color: As Pictures Shown Product Size: Approx. 20.3x9cm/8x3.5in Iron Core Size: Approx. 10mm/0.4in Weight: Approx. 415g/14.6oz Package List 1 x Oar Lock Patch 1. Manual measurement, please allow 1& 8209;2cm error, thank you 2. The picture may not reflect the actual color of the project due to the differences between different displays. 1The 10mm/0.4in iron core needs to go through the center hole of the paddle and be fixed. 2Easy to install, no drilling, no need to install screws and nuts. 3It can be glued to the desired position and provide a firm grip and storage space for paddle/oar. 4Fixed oar to provide a fixed support for the oar during rowing. Universal is suitable for almost all paddles. 5Great accessory for inflatable boats, kayaks, canoes, rafts and dinghy, etc.