Karcher Compatible Keepow Variable Nozzle

I purchased this on Amazon intending to attach it to my K?rcher handheld cleaner, but it seems to be for a standard K?rcher model and didn't fit, so I'm selling it.
It has been opened from the bag but is brand new and unused.
Below is the description from the Amazon product page.
Please read carefully to avoid the same situation as me, where you buy it only to find it doesn't fit.

360° Rotating Design: Effortless cleaning at any angle! The flexible variable nozzle easily cleans narrow gaps and complex shapes. Especially convenient for car washing! Even cleaning the top of tires or wheel arches can be done easily by simply rotating the nozzle 360°, without awkward postures or bending your back.
Adjustable Water Flow Strength: The nozzle's water flow strength can be freely adjusted, allowing you to select the optimal flow for your cleaning purpose. It handles a wide range of cleaning tasks, from light dirt to stubborn grime.
Durable Design: This pressure washer accessory is made from high-quality materials, ensuring excellent durability for long-term use. It can be used without issues even in harsh outdoor environments.
Versatile Applications: Widely applicable from home use to outdoor activities! A versatile nozzle that is useful in all sorts of situations, such as for bicycles, cars, garden furniture, camping gear, and more.
Compatible Models: Fits a wide range of models including K 1, K 2, K 3, K 4, K 5, K MINI series, and more. This is a cost-effective compatible part with a highly durable design!
If you have any questions or issues regarding the product, please contact Keepow customer support.