This handle is 3D printed to fit the large white trays with the slot in the front, these do NOT fit the small white trays with the spout. They fit perfectly with the large trays that are 9 cm by 16 cm and makes it easier to use them. The handle is removable which helps with pouring out drills when you are finished with that color. There are 5 handles that come in each set.
The handle is 2 cm wide, 1.2 cm tall, and sticks out 1 cm. They fit the large white trays that are 9 cm wide and 16 cm long.