10mm Hole 20mm Tarpaulin Eyelets Grommet Tarp Sail & Awnings Tents 25 Sets Grommet / EyeletsComes with 25 tops and 25 basesGrommets Ideal For Tarpaulin Sheets, Sails, Ground Sheets or Awnings.Use To Put In Additional Anchoring Points In Your Tarpaulins, Sails, Ground Sheets or Awnings.Hemming And Folding To SizeContents:25pc Complete Brass Plated Grommets/EyeletsInside Diameter Of Grommet Is 10mm Approx.Outside Diameter Of Grommet Is 20mm Approx.Thank-you for looking.Check out my other items!Be sure to add me to your favourites list!