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Removable tabletop. The ability to remove the chair's own tabletop, turning it into a regular seating area. This feature will come in handy when the child grows up and can be seated at a regular table.
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Removable tray. The removable tray in highchairs is usually installed on the tabletop and follows the same shape as the tabletop. This accessory can make life much easier for parents: for example, if the tray gets dirty after a meal, it can be quickly removed and washed, while the tabletop can be used for the child's playtime.
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Tabletop with edge. Tabletop equipped with a convex edge around the perimeter. This reduces the risk that the child will drop the dishes on the floor, accidentally hitting them; in addition, spilled liquid from such a tabletop will not fall on the floor, and it will be much easier to clean it up. Most modern chairs have a tabletop with an edge.
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Harnesses. Special harnesses that secure your child to the seat. Thus, you can safely remove the tabletop, leg stoppers, etc., without worrying that a baby will jump out of the chair (which, given the high height, is fraught with troubles).
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Lockable wheels. Highchairs on wheels are convenient for moving within the apartment, however, on the other hand, they can move from the slightest push. The
...wheel locks allow the chair to be positioned securely and prevent accidental movement.
— Toy basket. A special container for toys provided in the design of a highchair; may be a basket itself, a tray or even a fabric bag. It is usually placed under the seat. Such a basket makes it possible to always have a set of toys on hand to cheer up the baby if he or she cries or gets moody.
— Lying position. The backrest of the highchair can be set horizontally, turning it into a carrycot. This allows the chair to be used from the first days of the baby's life, when he/she is not yet able to sit up (chairs without this function are suitable for kids from about 6 months of age). Theoretically, such a carrycot can even replace a crib in the first months of life, although later a separate sleeping place is needed anyway.
— Arc with toys. A special arc that is placed above the chair seat. Such toys are designed to entertain babies, and therefore the arc is usually mounted on the chairs that provide for conversion into a carrycot (see the relevant paragraph above). For feeding, the arc can be removed.