Thank you for viewing. This item is crocheted with 100% cotton yarn. A 14mm diameter metal hook is used. The back side of the hook is black resin. Size: Approximately 10.5cm x 17cm (approximately 15.5 cm from the bottom of the hook) ・If you would like the handle (one-touch fitting) shown in photos 4 and 5, it will be an additional 100 yen. Please comment before purchasing. 　Material: Polyurethane, steel 　[Approximately 18cm (excluding fittings)] I think it can be used for purposes other than smartphones. This is a handmade item by an amateur, so please understand that there may be some looseness in the stitches or slight misalignments. Thank you for your understanding.