Top critical review
No instructions... so here they are for button type.
Reviewed in the United States on November 18, 2019
Blades are presented in a 'pizza box' curved into a plastic insert. The spare inserts and two sets of adapters are included in the type G. This ultimately proved to be compatible with my 2017 Buick Encore which uses a push button connector.
The retail box was mailed, as is, covered with stickers and tape and with somebody else's return label peeled off so that the instructions, such as they were, were missing. Had to go back to the web site. No instructions or useful video.
How to install:
1. Remove old blades from vehicle. Push button and pull. Easy.
2. Remove plastic housing from new blades. You need to get a smallish screwdriver or similar under one end of the central plastic housing and apply some force. The housing pops off a centrally mounted spindle.
3. Attach the selected adapter that matches your type. KM-4(L) in the diagram. Use this to orient the housing square over the spindle. Push down squarely and firmly. It should 'POP' into place
4. Slide blades into wiper arm housings so the square button locates in the square hole. Don't do this upside down! The button with the movable tab should be on your right.