The original set of Dino Glows was released in 1997 which included three Dino Glows:
Purple Trike Triceratops, orange T-Bone Tyrannasaurus and green Dippy Diplodocus.
The 1999 re-release included a fourth Dino Glow, blue Stacey Stegasaurus.

The outer skins of the Dino Glows are remaveable and reveal glow-in-the-dark skeletons.