Here is another doorway grip trainer that lets you practice climbing indoors. The Yes4All Wooden HandBoard has round corners and an anti-slip surface. It has various slopers, mini crimps, pinch holds, and grip positions. The mini crimps are shallow in depth to give you a challenge.
The Yes4All Grip Training HandBoard has 2 detachable pinch holds. It has max weight capacity of 300lbs. You can find out more about it here.