The R129 Car Child Safety Seat For 100-150CM Children is a child restraint system approved under ECE R129, engineered for children with a stature range of 100 to 150 centimetres. It features a height-adjustable headrest operated by a one-hand adjustment handle, allowing the headrest position to be changed without uninstalling the seat or removing the child. A key structural characteristic that differentiates this model from many other seats in the same i-Size category is its separable design: the seat base can be detached from the backrest and used independently as a booster cushion. This dual‑function configuration is not commonly found among comparable high‑back boosters, which typically use a fixed backrest. Isofix anchorage is available as an option to increase connection rigidity. The overall product dimensions are 460 mm in depth, 480 mm in width, and 690 mm in height. The seat provides lateral impact protection for the entire specified height interval, in line with the R129 testing protocols. It serves as a single‑stage solution from approximately 3.5 years to 12 years, covering both forward‑facing high‑back and backless booster modes without requiring the purchase of an additional booster seat.
The R129 Car Child Safety Seat For 100-150CM Children is constructed to accommodate children measuring between 100 cm and 150 cm in height. The height‑adjustable headrest is linked to a one‑hand adjustment handle positioned for direct access; pulling or pressing the handle releases the headrest so it can be moved through its full range of positions. This continuous adjustment eliminates fixed step gaps and allows the headrest to follow the child’s growth without tools.
The seat base can be separated from the backrest. In its complete configuration the seat functions as a high‑back booster, supplying side‑impact protection, a shaped headrest and belt routing guides that help keep the vehicle’s diagonal belt aligned over the shoulder. When the backrest is removed, the base becomes a standalone booster cushion. This two‑mode capability means the same unit can transition as the child grows or as the vehicle seating situation requires, using the vehicle’s head restraint for support in backless mode. The connection between the backrest and base uses mechanical latches that do not require tools for engagement or release.
Isofix connectors are offered as an option. When the optional Isofix arms are deployed, they anchor the seat to the vehicle’s Isofix anchorage points, reducing forward displacement and side‑to‑side movement. The seat can also be installed using the vehicle’s three‑point seat belt alone. The belt path is colour‑coded and marked with moulded guides to reduce incorrect routing.
The product dimensions of 460×480×690 mm are compatible with a variety of rear‑seat layouts. The seat shell incorporates energy‑absorbing materials in the side wings, headrest and seat pan, tested to the dynamic side‑impact requirements of ECE R129. The cover fabric is removable and washable, held by snap fasteners and elastic loops.
Typical usage scenarios include daily commuting, long‑distance travel and transfer between family vehicles, where the rapid conversion between high‑back and backless forms allows the restraint to be adapted to different seating positions or transported more compactly.
Comparison and FAQ
Comparison
-
Configuration: This product offers a detachable backrest, so the seat base operates as a stand‑alone booster. Many high‑back boosters in the 100‑150 cm i‑Size category use a fixed backrest that cannot be removed without making the seat unusable.
-
Headrest adjustment: The one‑hand adjustment handle moves the headrest continuously. Some seats require two‑hand operation or incremental notched systems that may not match every child’s exact shoulder height.
-
Isofix integration: Isofix is optional on this model, meaning the user can choose between Isofix anchoring and belt‑only installation. Certain competitor designs permanently attach Isofix connectors or offer no Isofix option.
-
Certification scope: The seat holds ECE R129 approval across the full 100‑150 cm range. Some products combine R44 and R129 ranges or split the height span into separate backrest and cushion‑only approvals.
FAQ
Q: Can the seat base be used as a standalone booster without the backrest?
A: Yes. The base detaches and functions independently as a booster cushion. For standalone use, the vehicle seat must provide sufficient head support, and the child’s ears should not exceed the vehicle head restraint. The instruction manual details the minimum height and weight conditions for backless mode.
Q: How is the headrest height adjusted?
A: A one‑hand handle located on the rear or upper section of the headrest is activated to release the locking mechanism. The headrest can then be raised or lowered along the backrest frame. Releasing the handle locks it in the chosen position.
Q: Is Isofix mandatory?
A: Isofix is optional. The seat can be installed with the vehicle’s three‑point seat belt alone. When the optional Isofix connectors are used, they provide additional lateral stability and reduce forward pitch during sudden deceleration.
Q: What height range does this seat cover?
A: It is designed and approved for children from 100 cm to 150 cm in height, in accordance with ECE R129.
Q: Does the seat meet side‑impact testing requirements?
A: Yes. The seat has been tested and certified under ECE R129, which includes dynamic side‑impact evaluation for the entire applicable stature range.
Q: How is the fabric maintained?
A: The cover can be removed from the shell by undoing the fasteners. It can be washed according to the care instructions stitched into the cover or provided in the user manual.