Folded cardboard house humans and felines will love.Size | 17'' x 17'' x 17''Triangle Opening Size | 12.5" x 12.5" x 12.5"Material | Corrugated CardboardColor | Black on KraftCat-friendly materials:Corn starch cardboard pasteWater based inkLocally sourced cardboardRecyclable*The Octacat is great for cats of all sizes...furry model pictured above weighs in on the chubby side.