Product name:Metallic Cord Locks*******Material:Cord Locks are made of Metallic material.*******Package Included:50pcs Single Hole String Cord Locks*******The top aperture is 0.6cm/0.23inch***** The hole diameter at the bottom is 1cm/0.39inch***** The height is 1.5cm/0.59inch******Used for hoodie draw/Pants strings,Lanyard Clothes Backpack Bag DIY********** NOTE:********** Due to lighting effects, monitor's brightness, contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item.********** Please allow 1-2mm differs due to manual measurement.********** Check the detailed size of the Cord Rope Locks if it fits your requirement before your purchase. Thank you.********** ONLYKXY Thank you for your coming, please do not hesitate to email us for any questions.