This is a Kallax series cube shelving unit with four compartments and two Knipsa series baskets from IKEA. The shelving unit is in good condition, there are some scratches but it's solid and still has many of years ahead of it. The basket is in fair condition, with some frays. Brand new, the shelves are $38.00 and the baskets go for $30.00 each.
Cube shelving unit – Black
Article no. 706.373.04
Width: 30 1/8 "
Depth: 15 3/8 "
Height: 30 1/8 "
Max load/shelf: 29 lb
Max. load/wall cabinet: 44 lb 1 oz
https://www.ikea.com/us/en/p/kallax-shelf-unit-black-brown-70637304/#content
Baskets – Seagrass
Article no. 706.373.04
Width: 12 ½ "
Depth: 13 "
Height: 12 ½ "
https://www.ikea.com/us/en/p/knipsa-basket-seagrass-20110540/