Cat House Cardboard Frame "Cat Hole" (Large Arch) Made to Order

Turn your existing cardboard boxes into a cat house!
Neko no Ana (Cat Hole) Frame for Cardboard Cat Houses
Simply insert into a cardboard box you have at home to secure, hide cut edges, and upcycle!

Just insert it into the opening of a cardboard box to secure it. It features a unique anti-slip stepped structure that prevents it from coming off even when your cat enters and exits. We offer four types: Arch, Square, Round, and Cat Ears. We also offer custom-made extra-large arch sizes for extra-large cats.

Features
■ 1. Simply cut and insert to complete
Even if you cut the cardboard roughly, the frame covers all the cut edges for a neat appearance.

■ 2. Won't come off even if your cat jumps in (Patent Pending)
The multi-step anti-slip structure, which fits the thickness of the cardboard, prevents it from slipping out.

■ 3. Can be reused even if the cardboard gets worn out
When the box gets damaged, simply replace it with a new cardboard box to complete the renovation. The frame can be used for a long time.

■ 4. Cardboard Upcycling
A sustainable item that gives discarded cardboard a new role as a cat house.

■ 5. Minimalist design that blends into your living space
The white frame eliminates the everyday look of cardboard, transforming it into a beautiful cat house that looks great in any room.

This product is an original product for which a patent application has been filed (Arch Frame for Cardboard Boxes and its Mounting Structure, Application No. 2026-067301).
Material: Plastic (3D printed)
Size: 295 x 222 x 25 (mm)
* The product in the photo is a prototype, so it may differ slightly from the actual product.

Notes
There may be layer lines due to handmade (3D printing) production.
Cardboard boxes are not included with this product.

--About LINER--
LINER is a micro-factory that handles everything from planning, design, modeling, manufacturing, to commercialization.