Kit Includes: (8) Black Nylon Plastic Thumb Nuts (8) 7/8" Long Bolts for older style Kennels (prior 2006) (8) 1-1/4" Long Bolts for New Style Kennels (after 2006) (8) 1-3/4" Long Bolts for Navigator, Compass and Grreat Choice Kennels Universal Replacement pet carrier attachments- Hardware (Nuts & Bolts) 1 size Fits ALL, Black Plastic Thumb Nuts & Metal Bolts for securing your pets airline Crate, carrier or kennel. Replaces missing bolts or faulty plastic peg attachments, an absolute necessity for pets traveling in the cargo area of the plane and required by airlines. Keeps pets safe and secure while traveling. Fits ALL pet Carriers, Dog Crates and Kennels including Petmate Vari Kennels, Sky Kennels, Navigator, Compass, Grreat Choice and Pet Taxis Pet Shuttle or Any Doskocil or Petmate Brand. Also fits and replaces plastic pegs of Travel Aire, Remington, Plasticrate, Rover, WILL NOT FIT SKUDO, KONG OR MARCHIORO which are not recommended for airline travel!