Crazystone's Pet Winter Autumn Outdoor Indoor Removable Washable and Portable Warm House Small pet winter Autumn Outdoor Indoor Removable Washable and Portable Warm House Essential encryption high resilience foam, full detachable design, no deformation, easy storage, personalized carry, all zipper removable Weight: 400-500G,lightweight Easy to clean, Small size(13.8''L12.6''W12.6''H) fits less 4.4lbs,medium size(17.7''L14.2''W14.2''H) fits less 8.8lbs,large size(22.8''L17.7''W17.7''H) fits less 17.6lbs