Plastic Self-locking Guyline Runners.Unique 3-hole rope anti-slip adjustable toolComes in Lot of 10 Pieces for Extra Convenience.Adjust the rope,help to lock the cord and prevent it skids away.Can be flexible to adjust and fix brake rope length, will practical and convenient for your outdoor sportsDescription:100% brand new and high quality.Features:1.Unique 3-hole rope anti-slip adjustable tool2.Adjusting, and untying knots3.Widely used for tents rope connection and length adjustment4.Can be flexible to adjust and fix brake rope length, will practical and convenient for your outdoor sports5.Suitable for 2-5mm ropeSpecifications:Material: PlasticColor: BlackDimension: Approx. 37x12x3.2mmHole Diameter: Approx. 0.2 inch/5 mmPackage Includes:10 x Rope TensionerNote:1.Transition: 1cm=10mm=0.39inch2.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!