The Shield Bubble was a Rare and Epic utility item in Battle Royale introduced in v10.20. It resembles a grenade that can be thrown and attached to anything except for other players. When it attaches it will create a giant transparent dome ("bubble") around the item. It is unvulnerable to projectiles and explosives. Nothing can be shot through it from the inside and outside, but players can walk through it. The bubble will automatically disappear after 30 seconds. To make the bubble disappear immediately, you have to destroy the attached item inside the bubble by simply using a weapon or your pickaxe. The Shield Bubble can also be attached on vehicles. That way you can move the bubble around wherever you want.
The Shield Bubble was vaulted with Chapter 2 Season 1 due to the item pool being narrowed down to more basic items. It is currently only available in the Creative game mode.