Mesh vs. Mesh Collider for simple game setup

Is it recommendable to use Mesh colliders in a simple flipping game with a playfield similiar to the one below. I know that it´s highly inefficient. I will only have these 15 objects with colliders. The Objects are shaped like a cylinder and they have to slide over the surface. Using capsule colliders results in rolling of my cylinders. Using a box collider is not precise enough for this kind of game I think. The objects have to collide against each other in a precice manner (similiar to billiard)

I searched for other answers but I´m not sure about using a box collider and precision issues in the gameplay.