A weed trimming device includes a support member engageable with at least one of a user’s back, a user’s shoulders, and a combination thereof. The method produces polymeric components suitable for implantation with a structure and mechanical properties close to those of natural bone tissue. 1, and the intrinsic coercive force of the bonded magnet at the room temperature is in the range of 320-720 kAm. Individual clients are issued packet handles to use in identifying particular packets to the packet manager.