I would be interested in a few of them. I have researched some actuators but mainly pneumatic due to most of my robot’s limbs are all pneumatic. But I would be interested in electrical because of price. What I would look for is precision control and ease of use. Precise control would be as simple, like hall sensors to keep track of motion or even magnetic. Ease of use would include a common mounting system. Example would be common rod clevises on the ends. You wouldn’t need to include them in the package, but have a way to utilize them. The hole on the right end of the plastic housing would be good as it can be mounted using numerous methods.
Looks like the plastic was made from a 3D printer?