The diagram below illustrates  a safety equipment used in keeping materials.   Study the diagram carefully and use it to answer questions 3(a), (b),  and (c).
 
                                   (a)  Name  the illustrated safety equipment.                                         [1  mark]
                                   (b) Name four places in which the equipment  can be found.             [4 marks]
                                   (c)  List four materials associated with  fractures that can be
                   found in the equipment.                                                                 [4  marks]