Description: Ultralight ,Very easy to use and very easy to carry. Help to adjust the cord to any length. Great to lock the cord and prevent it skid away. Protect your tent from wind and keep it safe. Made of premium alloy, heat-resisting, sturdy and durable. Can be used for adjusting the length of rope, anti-slip and firm. 2 hole design, easier to use Specification: Dimensions: Approx. 35x9x1.5mm/1.4x0.4x0.06inch Hole Diameter: 4mm/0.16inch Color: Silver Size : Fits for rope 4mm or less Package Includes: 10 Pieces Rope Tensioners