Koikoi Droplets is a New Zealand-based online collectibles store focused on die-cast cars, trading cards, action figures and toys. Its range is led by Hot Wheels, including mainline releases, premium series, themed collections, multipacks, loose cars, display cases and protectors. Shoppers can also browse models from brands such as Matchbox, Mini GT, Kaido House, Auto World, Greenlight, Maisto and Bburago, alongside Disney Cars and other die-cast vehicles.

Beyond cars, Koikoi Droplets stocks Pokémon and One Piece trading card products, including sealed items, singles and TCG accessories. Its action-figure selection includes lines such as Marvel Legends, Star Wars, Transformers, Jurassic World, WWE and McFarlane. Other collectibles include Funko Pops, LEGO minifigures, Banpresto figures, Pop Mart, Tech Decks, Blokees, NeedOh and Zuru toys. The store features new releases, vintage and loose finds, pre-orders, rare collectibles and clearance items, with products available to browse and purchase through its online shop. Based in New Zealand, it offers nationwide delivery, also ships to Australia, and provides Afterpay as a payment option.