Different bumper-like materials found in the series are shown below.
Rubber
A Rubber
The purple material in the picture is rubber.
Rubber is a purple soft, bouncy material used by the Pigs in Angry Birds. It first appears in the episode Danger Above, and is represented as purple ovals connected to each other.
Rubber was made to repel the Birds and essentially, cannot be destroyed. Whenever a bird hits rubber, it will bounce back and make a "sproing" noise. Rubber functions similarly to floaties and umbrellas in Angry Birds Rio.
Objects can also be bounced around with rubber, such as stone balls or wood planks, but are damaged every time they hit the rubber.
The only known way to destroy them is by getting the Mighty Eagle to hit it.
Eraser
In the Birdday 5 levels, there's a eraser that works like a bumper, but it's much weaker, bouncing characters and objects to a really short distance.
Rhinoceros
The rhinoceros first appears in level 4 of Birdday 5. He blinks in the levels. He bounces characters with little strength and is a bit strong when destroying objects.
Jell-O
Jell-O Pieces
Jell-O in Utopia 4-2
Trampoline
The trampoline first appears in level 9. In the game, it works the same way as rubber, but its strength is a bit different.
Angry Birds Stella Version
Trivia
- Rubber, along with Eggs and Ground are the only indestructible objects in the game. However, The Mighty Eagle is the only bird that can destroy Rubber.
- In Angry Birds Rio, Matilda's eggs can bounce off of rubber-like materials.
v • e 
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|---|---|
| Playable characters | Stella • Poppy • Luca • Willow • Dahlia • Gale |
| Enemies | Gale • Handsome Pig • Minion Pig • Boom Pig • Helipig • Space Pig • Big Pig • Muscle Pig • Ninja Pig • Jetpack Pig • Cursed Pig • Zombie Pig • Trainer Pig • Necromancer Pig |
| Materials and Objects | Slingshot • Glass • Wood • Stone • Trampoline • Drums • Explosive Fruit Box • Vortex Box • Box of Coins • Geyser Box • Pig in a Box • Anti-Gravity Box |
| Chapters | 1. Branch Out • 2. Beach Day • 3. Cave* • 4. Circus* |
| Miscellaneous | Hammer • Album • New Pigs on the Block • Lost and Found Items • Cutscenes • Coins • Star • XP Stars |
| Further Info | Achievements • Comic-Con Trailer • Gallery (Textures & Sprites) • Glitches • Original Soundtrack • Unused Content • Version History • Level Failed |
| Other Media | Sub-Series • Comic Series • Angry Birds Stella Diaries • Stella: Nana and the Magic English Words • Stella Super Interactive Annual 2015 • Telepods |
| Key | *=Unused |
