100 - 5/8"& 1/2" Black Side Release Buckles (50 Each) For Paracord Bracelets 5/8"& 1/2" Contoured Side Release Buckles 1/2" - 12mm Opennig For Webbing or Straps - 1.44" long and .7" wide 5/8" - 14mm Opening For Webbing or Straps - 1 5/8" long, 7/8" wide Uses can include for paracord bracelets, dog collars, backpacks, etc.