Product description: Please pay attention to the following description of models and specifications when 

                                 placing your order for pad arms.

Pad arms model: B01～B30.

Pad arms maerial: Nickel Silver (18% nickel content) / Monel（65% monel content）/ Beryllium Copper.

Remarks: 1.All raw materials used are imported from abroad.

　　　　  2.The click adjustable pad arms (B01～B30) must be used in line with click adjustable nose                     pads (101～109、S01、S05).