This is a system to make GIVI cases one-key compatible for Kawasaki motorcycles such as Ninja, Versys, Z900RS, Z1000SX, ZX6R, ZX10R, Z125, Z250, Z650, ZZR400, Z750, Z800, Z900, and Z1000. It's compatible if your motorcycle key has the same shape as the top key in photo 5 (the thinned-out area). Keys with a groove in the middle, like the bottom key, are not compatible. However, you can consider the one for V-Strom 250SX, which is listed separately. Photo 1 shows the Monokey OBKN58 and Monolock E43, but this system can be used for one-key compatibility with other cases as well. S250 TOOLBOX and GRT720 can also be made one-key compatible. If you are using a Monokey case with the security key shown in photo 2, you can purchase it immediately. (Smart lock keys are not compatible.) For Monolock cases, you need to replace the rotary claw with a Monokey one. If you want a rotary claw, it will be an additional 700 yen. There are two types of rotary 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 photo 6. The case and key are not included. The rotary claw is for those who want it for 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, making it a GIVI one-key compatible cylinder. There is an installation video. The motorcycle is a Suzuki, but 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: Not accepted Immediate purchase: OK Thank you.