Promaster 機身蓋 (適用 Sony Alpha)

Snapped it on my Sony Alpha and it fits perfectly with no wiggle room—exactly what you want for protecting the sensor. Nice to have a cap that doesn't feel flimsy like some of the generic ones I've used before.

Fits my a7 IV perfectly and locks on tight, no wobble at all when I toss it in my bag with the lens off. The plastic feels sturdy enough that I'm not worried about dust getting to the sensor.

Snaps on my a7 III with a satisfying click and stays put in my bag. The plastic feels sturdy enough that I'm not worried about dust getting in while I swap lenses.