The Mother Lode now comes in plastic pony beads or in wood beads. The base is a plastic baseball and connected to it is 12 plastic golf balls, all with untreated hemp rope knots and either plastic pony beads or 10mm wooden beads and small spools to keep those beaks busy. Great for medium and large birds. 2mm chain, 3.5mm wide jaw quick link, and washers are all stainless steel.