This Willow Tube by Nature First is not a rabbit sized tunnel, however they enjoy these tubes stuffed with hay/forage or simply to chew on from the outside.
Small: Approximately 12cm diameter x 26cm length
Large: Approximately 15cm diameter x 32cm length
Safety note: It is the responsibility of the pet owner to assess the suitability of any treat, toy, or other product. Please read instructions, and directions of use carefully. Always supervise your rabbit whilst playing or eating. Remove the toy if it is damaged, or worn, or if parts become separated, to avoid injury.