The Olympia Climber will keep an entire litter happy for hours. At almost five feet tall, this multi-level climber sharpens claws too. The posts have intergrooves, which are wedge-shaped indentations in the wood, perfect for scratching and climbing. Made with eco-friendly Doug Fir and 100% wool carpet, hemp rope, and organic catnip. Available unfinished or with soy-based stain. Currently on sale for $237.95 at Active Cat.