Original accessories from ECOVACS ROBOTICS Package contain:3m + connector x1 Suitable for DEEBOT U2 PRO Easy to assemble - no tools required Block areas in your home that you don't want DEEBOT U2 PRO to disturb. Maintain your privacy and satisfy your cleaning needs by setting up a magnetic boundary stripe in your home for your robot to clean. Simply place the stripe where you want to restrict DEEBOT U2 PRO from entering. Block areas in your home that you don't want DEEBOT U2 PRO to disturb. Maintain your privacy and satisfy your cleaning needs by setting up a magnetic boundary stripe in your home for your robot to clean. Simply place the stripe where you want to restrict DEEBOT U2 PRO from entering. (*Purchased separately).