A practice bat including a free sliding region provides a means for training batters to improve swing quality. In addition the invention relates to the compounds, methods for their preparation, pharmaceutical compositions containing the compounds and the uses of these compounds in the treatment of certain disorders related to GPR40 activity. The end wall has shoulders integrally formed with the end wall and skirt proximate the upper end of the skirt on opposite sides of the lid hinge. The armature comprises interruptions defining zones of electric discontinuity in cooperation the perimeter of the compartments housing the coils. The decoding functional unit then outputs the IDs to a customer-number-assigning functional unit with a receiver ID.