【High-Quality Casters】 The Errector S100W casters are designed for durability and are suitable for various applications. The 2-inch wheel diameter ensures smooth movement. 【Versatile Applications】 These casters are perfect for DIY projects and moving furniture. They are especially effective when transporting heavy items. 【Set Contents】 Sold in sets of 4, allowing you to purchase the required quantity at once. - Brand: Errector - Wheel Diameter: 2 inches - Manufacturer: Errector - Model Number: S100W - Price: ¥5,557/piece - Quantity: 4 pieces Thank you for viewing. Purchased from Amazon, but unused. This is being sold because I mistakenly purchased screw-in type instead of press-in type. I realized the mistake before delivery, so the item has only been opened for inspection and has not been taken out of the box.