This mounting bracket is used with roller shades that have the Rollease Cassette 120 system. That cassette measures 3 7/8" tall and 4 7/16" wide.

Also compatible with 2" Versarail wood blinds that operate with a clutch and cord loop.

Rollease part number V2BKT.

Silver metal.

Sold individually.

Mounting and removal instructions can be found here.