Shelf Cave which will fit into most shelves therefore creating a cosy retreat for your feline friend! Key Features: Woven fabric. Polyester cover. Collapsible. Suitable for e.g. IKEA Kallax or Expedit shelves. Cushion with plush cover (polyester) and polyester fleece filling, quilted. Colour: Grey. Measurements: 33 x 33 x 37 cm.