This is a vintage 1990 Playmates Teenage Mutant Ninja Turtles Triceraton Utility Belt. It is an action figure accessory made of plastic, designed for the Triceraton character from the Teenage Mutant Ninja Turtles franchise. The belt is from the early 1990s and is part of the TMNT toy line, featuring a design inspired by the TV show. It is a collector's item for fans of the classic TMNT series.
eBay