Pure nature in your pet home! A cork tunnel is a must for every pet. It’s great for hiding away and having a snooze and encourages climbing and playing with its rough surface. This Trixie tunnel consists of 100% natural cork, which is entirely harmless and can be nibbled on as much as your pet likes. Measurement Overview: M: diameter approx 10-14 cm, max length 40 cm L: diameter approx 14-19 cm, max length 55 cm Please note: This is a natural product. Exact measurements, colour and shape may vary from illustration.