Used to hinge a bench seat to access an under-seat storage compartment, these double-articulated hinge arms are designed to move the seat top forward slightly as it lifts for clearance against a padded backrest.
Springs assist with opening the lid and hold it fully open at about 45°. When closed, the steel hinges are 19" long and 2" tall.
Not recommended for use with toy boxes (the hinges do not prevent slamming). Requires a seat top weighing a minimum of 4kg (8.8 lb) and a maximum of 8kg (17.6 lb).
Fasteners not included.