They're 3d printed in black flexible TPU. They are a reproduction and not an exact copy.
1 set of tracks Structo Steam shovel , Drag line, Excavator gear (TRACKS ONLY)
1 set of tracks Structo Steam shovel , Drag line, Excavator ribbed (TRACKS ONLY)
1 set of tracks Structo bulldozer (TRACKS ONLY)
1 SET OF TRACKS FOR Hubley diesel bulldozer (TRACKS ONLY)
1 set of tracks for PRODUCT MINIATURE International Harvester IH TD24 crawler
1 SET OF TRACKS FOR 738 TONKA MIGHTY DIESEL MIGHTY BULLDOZER , 463245-A
