This window stay assembly uses a straight roller arm and a separate receiving keeper for sash movement-control hardware. Four black guide inserts are arranged in paired positions along both sides of the narrow arm, creating a visibly different guide layout from versions with only one pad at each end. A raised circular head with a hex-socket centre sits at the upper end, while the opposite end extends into a flat connection tab.
The matching keeper has two recessed fixing locations, curved entry channels at both ends, and a small side opening near the centre. These features make the keeper geometry an important part of system selection rather than an interchangeable accessory. Buyers should verify the roller-to-keeper interface, fixing position, connection dimensions, operating direction, and available clearance throughout the intended movement path. The alignment between the arm and keeper must also be checked against the sash and frame arrangement.
For quotation preparation, submit drawings or clear installation photographs, samples where available, arm and keeper dimensions, mounting orientation, finish reference, order quantity, and packaging instructions. CHIER can review the supplied information for OEM or ODM specification development without assuming compatibility with an unconfirmed window profile.