As many Transformers fans know, the head shape of Optimus Prime varies depending on the series and era, particularly in the G1 series. This product features the "round" type head part. We also offer a separate "round" type head part, and if you purchase both at the same time, we will discount the total amount by 1,000 yen. Please note that this product is not an official product. It is handmade using a 3D printer upon order, so it will take approximately two weeks to ship. Target Model: Transformers Studio Series SS-142 Optimus Prime Product Contents: Head replacement part (round type) x 1 *Figure body not included Delivery Time: Approximately 2 weeks from order to shipment We highly recommend this for those who enjoy custom modifications!