Manufacturer: 2025HYPERLITE Product Name: FREQUENCY BOOTS ■Size OSFA (One Size Fits All: Approximately 24cm-30cm) *Please note that the fit and feel of the size may vary depending on the user's foot shape. The above size is only a guideline. ■Specifications Bolt: M6 Plate Width: 6 inches ■Features ・Low Pro Plate System ・Aluminum Claw Inserts ・Single Lace Construction ・Support Level: Medium ・Adjustable Boot Construction ・Easy On/Off Construction ・EVA Footpad ・6-inch Universal Mount Opened once, but the size didn't fit, so it's new and unused.