Thank you for viewing! This is a height adjustment block (large size, set of 4 / black). This is a convenient item that raises the height of furniture simply by placing it under the legs. It is highly recommended for those who find tables, kotatsu (heated tables), and beds difficult to use due to their height, those who have poor posture, and those who have difficulty standing up. 【Product Information】 ・Size (per piece): 16.5 x 11.7 x 8.2 cm ・Total weight: Approximately 1.23 kg ・Material: PP resin ・Color: Black ・Weight capacity: 1000 kg (total weight including the bed and the user's weight) 【Leg sizes that can be installed】 ・Square legs: 5.3 x 5.3 cm or less ・Round legs: Diameter 7.5 cm or less ・Fan-shaped legs: 7.5 x 7.5 cm or less ・Oval: Diameter 7.5 cm or less ※ Please be sure to check the size before purchasing. 【Convenient points】 ・Can be used for a wide range of furniture such as tables, beds, sofas, kotatsu, and chests of drawers ・Strong enough to support large appliances (washing machines, refrigerators) ・Cushion on the bottom to prevent scratching the floor ・Raising the height makes cleaning and storage easier and more comfortable ・Raising the bed can make it easier to stand up, supporting daily activities 【Notes】 ・Please be sure to check in advance whether the kotatsu legs will fit in this product. ・Even within the size range, it may not fit depending on the shape of the legs. ・Avoid using on furniture that moves a lot, such as chairs. ・Do not use in unstable places such as uneven floors. ・If damaged, discontinue use for safety reasons. Please refrain from purchasing if you are concerned as this item is stored at home. We will carefully pack and deliver it.