DDY 16Pcs Aluminum Guyline Cord Adjuster for Tent Camping Hiking Backpacking Picnic Shelter Shade Canopy Outdoor Activity(Blue) Size: 0.59 x 1.53 x 0.07inches (width x length x thickness). Weight: 0.1ounces; Diameter of the Hole: 0.23inch. Color: Blue Help to adjust the cord to any length Protect your tent from high wind A package includes 16pcs adjusters