500ml vacuum flask

A row of vacuum flasks measured in milliliters lines a promotional supplier's sample shelf, each body sized for a single serving of coffee, tea, or cold water. These are the compact members of the flask family, built for a handbag, a desk, or a car cup holder rather than a picnic table. Buyers scanning this shelf will find fifteen direct products, all mid range in positioning.

Construction follows the familiar double wall pattern: an inner vessel, an insulating gap, and an outer shell that stays comfortable to hold. A screw lid with a silicone gasket seals the opening, and many units add a cup-shaped cap that doubles as a drinking vessel. The square lid vacuum flask on this shelf shows how far the lid format can vary within one small capacity band.

Wholesale buyers treat this category as an entry price point for corporate gifting, hotel amenities, and subscription boxes. Importers appreciate that small flasks ship densely and fill cartons efficiently, while distributors can stock several colors without deep inventory. Sourcing checks should cover lid thread quality, gasket fit, interior seam finish, and whether the exterior coating survives a light scratch test.

End users reach for a milliliter flask when they want a hot drink to survive a commute or a cold drink to last through an afternoon of errands. Teachers, commuters, gym members, and travelers favor the compact size because it fits where a liter flask will not. The vacuum flask format keeps contents at temperature for hours without condensation on the outside.

Merchandising works best when the shelf reads as a family: stainless steel, plastic, and aluminum bodies side by side, with the smaller ml capacity grouped as a distinct option. Pair these with the printed thermos flask and tea pot vacuum flask lines so buyers see the full range. Confirm wall thickness, lid compatibility, and packaging before committing to a seasonal program.