This is a large unholstered footstool with wooden feet. The top section is hinged to allow access to a storage space inside. The top measures 63 x 51 cm. The bottom section is slightly padded, so the full measurements are 67 x 55 x 15cm high. The storage space interior is 57 x 46 x 16.5cm high.
This was originally a Freegle find, and I intended to reupholster it but never got around to it. The fabric is quite worn with a small hole in the top (see photos). However, it's a sturdy thing and the fire label is still attached.

Unholstered footstool with storage (Eaton NR4)