Made under the management and guidance of TIDO, it is safe as it is widely sold and used in Europe, America, and Japan. The width and height can be adjusted to suit the player's preference. It has a wave shape that fits the shoulder, and soft cushions are used. The sound quality and wearing comfort are good, and it is economical because it can be used for a long time and requires fewer replacements. It is a high-quality shoulder rest with a solid construction. It has been used only a few times for testing purposes and is in excellent condition. Weight: 103g ◆ Occasionally, there are comments that the leg screws spin freely (when not attached to the instrument), but this is not a defect and is the intended specification. The screws will not move once attached to the instrument, but if you are concerned, you can adjust them with commercially available "screw lock (low strength)". Thank you for viewing.