This is a system to make GIVI cases one-key compatible with Kawasaki motorcycle inner groove keys, such as Ninja, Ninja 1100 SX SE, H2SX, Versys 1100, 650, Ninja 400, and Eliminator. If your motorcycle key has the same shape (inner groove key) as the one in the fourth photo, it's compatible. The first photo shows the Monokey OBKN58 and Monolock E43, but you can make other cases one-key compatible as well. You can also make S250 toolboxes and GRT720s one-key compatible. If you are using the security key in the second photo for your Monokey case, you can purchase immediately. (Smart lock keys are not compatible.) For Monolock cases, you need to replace the rotating claw with a Monokey one. If you want a rotating claw, it will be an additional 700 yen. There are two types of rotating claws: round and square, so please specify the same type as your case (photo 3). The product includes the cylinder set, black sleeve, gold-colored parts, and two screws, as shown in the fifth photo. The case and key are not included. The rotating claw is for those who want to use it with Monolock cases. As an added feature, you can remove the key even when the case is unlocked. This is very convenient when you remove the case from the motorcycle and carry it, or when you open and close it frequently. The material is brass, and it has been black-plated by a plating company. The cylinder is a genuine Kawasaki product, but it has been threaded for screws, making it a GIVI one-key compatible cylinder. There is an installation video. Although the motorcycle is a Suzuki, the cylinder shape is almost the same, so it should be helpful. https://youtu.be/-DbeqXFpMo4 Please ask if you have any questions. Price negotiation is not possible. Immediate purchase is OK. Thank you.