Tunnel (Fabric with 2 Rods)Cloth tunnel and 2 wooden rods; Length: 120 cm Ð without the Beaver Cubes. Beaver Cubes and Beaver Tunnels can be connected. They are great for crawling through, hiding or resting. The Beaver Tunnel can be constructed with only 2 Beaver Cubes!ybrYMaterial: Cotton washable up to 60C. Maximum stress tolerance up to max. 60 kg. The fasteners provide for a secure non-slip connection to the Cubes. For the vertical construction, the Beaver Cubes must be connected to each other with Beaver Fixed Screws (B 952). The Beaver tower can be stabilized by using 4 boards (B 457) (see photo below)."