Features: brand new and high quality high-grade 316 stainless steel, good, anti-rust and anti-corrosion. The wheels are high-strength nylon, very strong and load-bearing. The whole wheel light and portable, adopting rivets close technology, very compacted, provide higher efficiency, stability and smoothness. With perfect of wear resistance and durability, the nylon wheel can reduce friction and noise when using, preventing ropes from scratching. Perfect for marine hardware, sailing, kayak, canoe, boats, dock wire rope kit, curtain, clothes lines. Great workmanship, with strict quality control and quality assurance, high safety factors, can be used with peace of mind. Specifications: Material: 316 Stainless Steel Size: Approx.45x26mm/1.77x1inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 2x Single Wheel Pulley