Works with any standard 4mm Allen Wrench bit/driver
Fits most brands and models using square head 6mm axles
Interior fastening system for added strength and reduced loosening
Nickel plated steel for strength and durability
Pre-treated with Helo Bolt Glue on screw threads
Package includes: 8 axles two piece axles that have been pre-coated with Helo Blot Glue, and a 5ml bottle of Bolt Glue for future use.

Please note that with some skate / chassis models the axle with the square end may be a tight fit initially upon installation. Hand tighten fully with a bit of torque to get the square end to pull into the chassis. After having done this a few times, the square head should go in and come out without much effort.