Child Safety Seat Buckle Accessories, Firm Locking of Baby Car Seat (Black) Dimensions: 24 x 8.5 cm. High quality zinc alloy and plastic. Has passed 8000 robustness tests. With belt buckle to prevent the belt from constantly slipping. For this purpose, the addition of a buckle is provided. à Protect the baby so that it is well held by the seat belt. Curved seat belt, helps in positioning and ensures safety; of the child. Effectively controls the opening mechanism of each buckle, thus preventing the baby's belt from being damaged. from accidental unlocking.