Ptatoms10pcs Aluminum Tent Rings Cord Tensioners (Red Color) Package included:10pcs adjusters Material: Aluminum Diameter: 0.75inch; Width: 0.28 inch; Diameter of the Hole: 0.15inch. Weight: 0.05ounce Help to lock the cord and prevent it skids away Ideal for camping,hiking,backpacking,picnic, shelter shade canopy outdoor activity