Installation:
            1. Open up an IMG Editor or Alci's IMG Editor.
            2. Open the models folder of your GTA: SA Directory (C:\Program Files\RockstarGames\GTA San Andreas\models) and click on the Player.img archive.
            3. Find the file names.
            (Neck.dff , neck_bb.dff , neck_field.dff , neck_hoodya.dff , neck_pimp.dff , neck_shirt.dff , neck_tracky.dff and neckls.txd)
            4. Click "Replace" and replace it 
            5. Click "Rebuild Archive".
            6. When it's done, run San Andreas.
buy place:
Binco->Chains-> L.S Chain