Purchased from the ARTIZAN official website. Shipping costs 1200 yen, so this is a better deal. Although it is new and unopened, there are folds on the packaging and instruction manual due to being placed in the storage box. Please be aware of this. The soles are fine! Please check the photos. Mizugumo Futae P8 are replaceable Delrin parts for mice, allowing for periodic replacement. - Model Name: Mizugumo Futae P8 (MG-FP8) - Material: Delrin POM - Shape: Multi-color shape - Replacement Parts: Replaceable periodically - Compatibility: For mice - Quantity: 8 pieces I bought these as spares, but I no longer have a use for them, so I am selling them. Thank you for looking.