It's just amazing how this has really worked out for me .. have a 68 lb yellow lab , is having a difficult time with our walks . Will just lye down . Took her about 4 times to force her in when she stopped on our walk. Since then .. it's amazing , when she is ready to rest goes to the back door . When she is ready to walk again will give a little yelp to get out . Great amount of room , able to carry phone , doggie bags , etc . One of the greatest ideas to have your best friend come along . Love it..