【Repair Parts Information】 This is a replacement gear set (2 sets) for the PC Engine CD-ROM². Contents: • Gear × 2 • Ring × 2 ※ As a bonus, we will include one more ring. To prevent the gears from being damaged during shipping, they will be shipped in a small Tupperware container. We use high-quality parts, so you can use them with confidence. The failure of the CD-ROM² disc to spin is often caused by damage to this gear, making this the perfect product for those considering repairs. Regarding Replacement Method You can find many detailed instructions by searching the internet. There is plenty of information available for even beginners to work with confidence, so please check it out. Please Note The only malfunction that can be repaired with this product is gear damage. If the failure is due to other causes, the repair may not be completed, so please be aware of this beforehand. We hope you will consider this product. Thank you very much.