The wall-mounted cat rack set saves space at home and provides a more suitable space for your cat, they can climb, play and rest freely, making up for the problem that cats can't play outdoors.comboA: 1 cat litter + 2 jumping platforms + 1 climbing ladder + 1 cat scratching postB: 2 cat dens + 2 jumping platforms + 2 climbing ladders + 1 cat scratching postC: 1 cat litter + 4 jumping platforms + 1 climbing ladder + 3 cat scratching postsD: 2 cat dens + 2 jumping platforms + 2 ladders + 1 cat scratching post + 1 cat head postE: 2 cat dens + 4 jumping platforms + 2 climbing ladders + 1 cat scratching postAfter sales:Thank you for visiting our store, if you have any questions during the purchase process, please feel free to contact us, we will solve it for you as soon as possible within 24 hours. Warranty & Support Feedback