The seat height can be adjusted (meaning the entire unit, with footrest and tabletop). This function is especially useful if you want to adjust the height of the highchair to match a regular table, and in some models it converts the highchair into a rocking chair, for example. Variable seat height is a mandatory attribute of
universal highchairs (see "Type").
Height adjustment can be either smooth or stepped; if the characteristics indicate the number of levels (see "Seat height") — it means that the adjustment is stepped, if not — smooth. Each option has its own advantages: smooth adjustment allows you to set the height as accurately as possible, stepped provides higher durability and reliability of the design.
The number of individual levels on which the seat of the high chair can be installed. The more such levels, the wider the possibilities for choosing the installation height and the more accurately you can choose the height for specific conditions.
Theleg stropper keeps the baby in the chair and allows you not to worry that the baby will slip between the tabletop and the seat and fall out of the chair, which is fraught with bruises and injuries. Today, these types of stoppers are used:
— Plastic. The most common type of stopper is a ledge on the seat or a partition between the seat and the tabletop. It can be fixed or removable, but is usually not adjustable. It is not considered appropriate for boys, so it is worth looking for a chair with a removable stopper or harness (see below).
— Wooden. Rigid stoppers, generally similar to the plastic ones described above, but used in highchairs made of wood (see "Material") — mainly for aesthetic reasons.
— Metall. Another analogue of the plastic stopper used in chairs, the bases of which are also made of metal. The advantages of this material over plastic are high durability and solid appearance. However, it costs considerably more, and the difference in durability is not great enough to compensate for the difference in price. Therefore, this option is rare.
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Harness. Harnesses are less common than plastic. On the other hand, they are softer and can be removed, which makes such chairs more appropriate for boys. In addition, in convertible highchairs (see "Type"), harnesses are usually used due to design features.
