Here you have a Custom Hot Wheels Vintage 5 Pack with several first editions including Dog Fighter, Sand Stinger, Radio Flyer, Hyper Mite plus Outsider all from the late 1990's/early 2000's. If you dig oddball vintage Hot Wheels castings, this is a nice set to add to your collection! 

Details on each model are:

Dogfighter- 1996 First Editions in Metalflake Red with Red, White, & Yellow tampos w/ 'K-9', stripes & star on sides.
Dogfighter is an unlicensed casting designed by Mark Jones depicting an early fighter aircraft. This casting was originally known as Air Attack.

Sand Stinger - 2003 First Editions in Green with Hot Wheels & 675XV tampos
The Sand Stinger is a casting designed by Phil Riehlman that resembles an ATV.

Radio Flyer Wagon - 1996 First Editions in Red with White “Radio Flyer” tampos
This casting was designed by Dave Weise and depicts a hot rod toy wagon. It features many design elements, including a large chrome blown V8 and a steering wheel shaped like the handle of the wagon. Since its release, it has also been released under names Hot Rod Wagon and Draggin' Wagon.

Hyper Mite - 2001 First Editions in Green with Purple checkerboard graphic, Orange & White 2, & Orange HW Logo on right side, Black & White cursive "Neesy", Black HW Logo on left side
This casting was designed by Mark Jones and depicts a bizarre-looking motorcycle-powered city car, similar to a Peel P50. Its interior features a bicycle seat and handlebars.

Outsider - 2003 Mainline in Metalflake Silver with Dark Blue, Red, and White "1"
Outsider was designed by Mark Jones and is one of the few Hot Wheels that has a driver, and the first one to have 2 drivers. Both drivers are removable.