There are some you just stick in the ground as high or low as you like.
These are made of wood or plastic.
Castle tees are graded by colour/height, The little orange ones are often green.
Most people use pink or orange with a modern driver
Some clubs are banning plastic tees and are selling bamboo tees in the pro shops
https://greentees.co/product/castle-bamboo-golf-tees-red-pink-orange/
How high you tee the ball depends a lot on your swing.
If you can’t be bothered watching the whole video here is a chart for you
