- Material: Natural material (igusa - rush grass) - Size: Large - Design: Round - Production Year: October 2016 Thank you for viewing. This is a handmade Nekochigura (cat house) from Sekikawa Village. I purchased it several years ago. It's very sturdy. My cat only used it a few times, so it's been sitting unused. It's still light in color, but you can enjoy the color changes over time. You can still smell the scent of the igusa (rush grass) when you get close to it. Please check the measurements in the photos for the size of the entrance and the overall dimensions.