Kruissteekkussen Kit. This says cross-stitch but it sure looks like needlepoint to me (see photos). Maybe it's a term used in Germany.
Size is 40 x 40 cm which is approx 15-1/2 inches (per Google calculator). Very nice kit.
Sealed, unused kit. Packaging may show some shelfwear and scuffing.
For measurements, fabric requirements -- click on the thumbnail image below to read the details.