Needle shield with specific roughness

An administration device, comprising:

• a shield for covering at least part of a distal extremity of the administration device, and
• a hub on which the shield may be removably engaged, wherein the hub is configured to be received within the shield,
• wherein the shield comprises:
• an open proximal end, a closed distal end, and a longitudinal wall formed of an elastomeric material extending from the proximal end to the distal end, an internal face of the longitudinal wall defining an interior cavity for receiving at least a portion of the distal extremity of the administration device therein, the internal face defining a securement portion which contacts the hub when the shield is secured on the administration device, wherein the hub is received in the shield such that an outer surface of the hub contacts the securement portion defined on the internal face of the shield, and
• wherein the securement portion has distributed thereover a surface feature that defines a contact ratio between the securement portion and the hub of less than 90%, when the shield is secured on the hub.