[Special Notice]: Our dog stairs is packed in a vacuum compression package,please make sure to open all packages before use, let the sponge come in contact with the air, and it takes time to rebound after opening. please patiently wait for 24-48 hours until it has fully rebounded to normal shape. If you encounter any problems during the use, please feel free to contact us rebound after opening. please patiently wait for 24-48 hours until it has fully rebounded to normal shape. If you encounter any problems during the use, please feel free to contact us
