Review on Aircovered AirTag Keychain Case: Silicone Skin Protector with Key-Ring Loop Holder - Compatible with Apple AirTags - 9 Color Options (Blue) by Russ Mashlan

I did not notice one of these limitations until arrival, now the bracket is only open on one side. There's a reason many (including Apple) are open on both sides so as not to get in the way of work and to cover engraving to order. I'm not saying that the airbag won't work if one side is covered in silicone, but I'm concerned that it might. I think that's probably why every accessory sold on Apple's website has an Air Tag that's open on both sides instead of closed. However, it looks like good quality.