joint training strengthens the bond, creates trust and makes communicating easier consists of 2 caves as well 1 balancing pole incl. booklet by cat expert Helena Dbalý with tips and tricks for designing optimal training Caves: with plush cover and sisal scratching surface large cave with cushions small cave with removable rustling curtain for walking through can also be used as a cat tower when stacked one atop the other Balancing Pole: with sisal cover can be attached at two different heights 2 overall lengths possible by joining 2 or 3 elements can also be used as a hurdle