The Cobblestone Collection
The Cobblestone Collection contains 10 skins across 5 rarity tiers. This page lists every skin in the collection organized by rarity, along with all possible trade up paths and their implications for trade up profitability.
Skins by Rarity
Consumer Grade — 4 skins
| Skin | Rarity |
|---|---|
| MP9 | Storm | Consumer Grade |
| Sawed-Off | Sage Spray | Consumer Grade |
| P250 | Bone Mask | Consumer Grade |
| Nova | Green Apple | Consumer Grade |
Industrial Grade — 2 skins
| Skin | Rarity |
|---|---|
| MAC-10 | Indigo | Industrial Grade |
| UMP-45 | Indigo | Industrial Grade |
Mil-Spec — 2 skins
| Skin | Rarity |
|---|---|
| CZ75-Auto | Green Plaid | Mil-Spec |
| Desert Eagle | Hand Cannon | Mil-Spec |
Restricted — 1 skin
| Skin | Rarity |
|---|---|
| M4A1-S | Knight | Restricted |
Covert — 1 skin
| Skin | Rarity |
|---|---|
| AWP | Dragon Lore | Covert |
Trade Up Paths
The Cobblestone Collection supports the following trade up paths:
| Input Tier | Output Tier | Inputs Available | Outcomes | |
|---|---|---|---|---|
| Consumer Grade | → | Industrial Grade | 4 skins | 2 skins |
| Industrial Grade | → | Mil-Spec | 2 skins | 2 skins |
| Mil-Spec | → | Restricted | 2 skins | 1 skin |
Trade Up Analysis
Consumer Grade → Industrial Grade
Using 10 Consumer Grade skins from The Cobblestone Collection, you receive one of 2 Industrial Grade skins. If all 10 inputs come from this collection exclusively, each outcome has a 50.0% probability.
Possible inputs: MP9 | Storm, Sawed-Off | Sage Spray, P250 | Bone Mask, Nova | Green Apple
Possible outcomes: MAC-10 | Indigo, UMP-45 | Indigo
Industrial Grade → Mil-Spec
Using 10 Industrial Grade skins from The Cobblestone Collection, you receive one of 2 Mil-Spec skins. If all 10 inputs come from this collection exclusively, each outcome has a 50.0% probability.
Possible inputs: MAC-10 | Indigo, UMP-45 | Indigo
Possible outcomes: CZ75-Auto | Green Plaid, Desert Eagle | Hand Cannon
Mil-Spec → Restricted
Using 10 Mil-Spec skins from The Cobblestone Collection, you receive one of 1 Restricted skin. If all 10 inputs come from this collection exclusively, each outcome has a 100.0% probability.
Possible inputs: CZ75-Auto | Green Plaid, Desert Eagle | Hand Cannon
Possible outcomes: M4A1-S | Knight
Use the Calculator
Plan a trade up using The Cobblestone Collection with our trade up calculator. Select this collection for your input skins and see all possible outcomes with probabilities and expected value.
Frequently Asked Questions
What skins are in The Cobblestone Collection?
The Cobblestone Collection contains 10 skins across 5 rarity tiers: Consumer Grade, Industrial Grade, Mil-Spec, Restricted, Covert.
Can I trade up skins from The Cobblestone Collection?
Yes. The Cobblestone Collection supports 3 trade up tiers: Consumer Grade to Industrial Grade, Industrial Grade to Mil-Spec, Mil-Spec to Restricted.
Is The Cobblestone Collection good for trade ups?
The Cobblestone Collection has 10 skins with 3 possible trade up tiers. Check the items at each tier to evaluate whether the value gap between tiers makes trade ups worthwhile.