Abstract: A self-propelled device includes a cutting assembly for cutting vegetation; a body for supporting the cutting assembly; and a traveling system for driving the body to move. The traveling system includes at least a traveling wheel; and a wheel hub motor integrally disposed in the traveling wheel. Along an axial direction of the traveling wheel, the first external dimension of the self-propelled device is greater than or equal to 0.2 m and less than or equal to 1.5 m. Along a direction perpendicular to the axial direction of the traveling wheel, the second external dimension of the self-propelled device is greater than or equal to 0.5 m and less than or equal to 1.5 m.

Abstract: The present application relates to an anti-slide sheath of a grip and methods for using and fabricating the same. The anti-slide sheath of a grip includes a sheath body for attaching a grip, and a connection portion is provided on the sheath body; the sheath body includes a contact surface located outside the sheath body and a connection surface contacting a surface of the grip; the contact surface and the connection surface are both supported by flexible materials.