Features: Marine grade stainless steel. Strong corrosion resistance and durable in saltwater circumstance. The Clamp-On Oarlock fastens securely to the oar with one adjustable bolt with no drilling required. The mounting plate rotates clockwise, which prevents the rows lock from falling off, and the release line lock needs to rotate counterclockwise. Great accessories for kayak, canoe, marine boat, dinghy, lifeboat, water raft boat, yacht, etc. Specifications: Material: stainles steel Length: approx 150mm/6-inch Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Oar Lock Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin