【Peace of Mind Guarantee】 In the unlikely event of any defects not mentioned in the description, we guarantee returns and refunds. Please refer to "About Returns and Refunds" in my profile for details. 【Condition】 Although unused, this item has been stored for a long time, and the instruction manual is discolored (images ②⑤). Therefore, we have listed it as "Like New." The product itself is in excellent condition. 【Model Number】 U9LA(DA).CY 【Cylinder Type】 U9 Cylinder 【Cylinder Format】 LA(DA).CY 【Color】 Silver 【Compatible Door Thickness】 58～66mm 【Quantity】 1 piece / 3 keys 【Compatibility Check】 ① Determine the main type of the lock currently installed on your door from the markings on the door's front plate. ② Check the cylinder type of the main type determined in ① in the MIWA Web Catalog's compatibility chart. If LA(DA).CY is listed under the cylinder type, it is compatible. Here is the link to MIWA Lock's general catalog: https://www.miwa-lock.co.jp/miwa_smartphone/tec/products/webcatalog.html The compatibility chart is on pages 847-853. ※ If you provide the front plate markings and door thickness, we can confirm compatibility for you. Please feel free to ask.