The product is only the "set of 2" chest parts found in 1-2. Please see past listings for usage examples. Compatible Body Standards: 30ms Option Body 17, 18 Cestiere These are custom-made chest parts compatible with the above standards. Modifications to other standards by cutting off pins, etc., are welcome. These parts are made using a 3D printer and water-washable UV resin. The buyer is free to paint, sand, and otherwise customize them as they wish. Search terms: Bishoujo Plastic Model Himepla