Prefastened absorbent articles may include a singular fastening mechanism that includes an oversized fastener, to provide stability between the front waist region and the back waist region and to maintain the prefastened configuration. The method includes determining number of bits, j, for adjusting a bit stream, where the bit stream is generated from n tones and is dividable into codewords having a codeword length of N bytes, and the number of bits for adjusting the bit stream is determined based upon n and N. Preferably, rate limiters shape individual flows of the reaction points that are causing congestion. A plurality of connectingdisconnecting members are provided in a clearance between the driving shaft and the driven shaft for connecting or disconnecting the driving shaft and the driven shaft by being fitted or disconnected tofrom respective opposite surfaces. On the edge of the leaves there is a red stripe. Either of two snap fit mechanisms limits clocking of the ring in use.