Quantity: Total 30 pieces Color: Mixed colors. Material: Zinc alloy Size: Spring Cord Locks: 17x14mm, 2-Holes,The hole size: 4mm, 2colors each 2pcs Spring Cord Locks: 14x14mm, 2-Holes,The hole size: 3mm 3colors each 2pcs Spring Cord Locks: 13x12mm, 1-Hole,The hole size: 3x5mm, 2colors each 2pcs Spring Cord Locks: 13x13mm, 2-Holes,The hole size: 3x5mm, 1color 2pcs Spring Cord Locks: 26x9mm, 2-Holes,The hole size: 4x5mm 2colors each 2pcs Spring Cord Locks: 22x9mm, 2-Holes,The hole size: 3x5mm, 1color 2pcs Spring Cord Locks: 22x6mm, 1-Holes,The hole size: 4x6mm, 1color 2pcs Spring Cord Locks: 26x7mm, 2-Holes,The hole size: 4mm 3colors each 2pcs Total 30pcs Feature: Usage: can be used for camping, hiking, shoelace replacement, sports, backpacks,etc. Spring Loaded Design： Simply squeeze together, the cord lock can move freely up and down, very convenient to lock rope. 15 fixed styles are enough for your various needs. Wide Applications: the cord locks can be used for lanyard, rope, luggage, shoe bags, shoelace, sportwear, backpack,etc. Customer support: If you have any problem with our product, you can click on the "Seller Contact" button in your Amazon account to send us an email. we will be happy to help you and we will reply as soon as possible.