Questions about Nintendo Joy-Con Set Blue/Yellow

Is there also the plastic part where you can put the Joy-Con's in and it becomes a controller?

Are the Joy Cons also OLED for the Switch?

I was wondering if the hand straps are already included in the set or do they have to be bought separately?

Dear Galaxus Are you kidding me? Today at noon I added the Joycon to my cart for 61 francs and now in the evening it suddenly costs 73 francs! Just like that... poof... 12 francs more expensive. Sorry, but I can't take your pricing seriously.

This controls look and feel good, but the problems that come after a while of use is unacceptable, I have 2 pair in wisch 2 of then are damaged, but damaged by ? Themselves? One the left joystick when pressed up locks on up, and the other ones disconnects and the top trigger r1 and R2 behave erratically. They cost more than PS4 or ps5 contoler, more than any controller for pc and more than any Xbox controller and in quality terms they are the worst.