Ikea Puang footstool with replaceable blue cushion. I bought this last year but need the space. The cushion can be replaced with different colours and styles from Ikea. It is indended to go with their corresponding rocking / arm chairs which have the same coverings. It is angled rather than flat. https://www.ikea.com/gb/en/cat/poaeng-series-07472/
Footstool only - other image is for reference purposes.