These items share the case's "Rare Special" probability pool. Each case opening has approximately a 0.26% chance to drop one of these.
★ Bayonet | Marble Fade Covert 
★ Bayonet | Tiger Tooth Covert 
★ Bayonet | Doppler Covert 
★ Bayonet | Doppler Covert 
★ Bayonet | Doppler Covert 
★ Bayonet | Doppler Covert 
★ Bayonet | Doppler Covert 
★ Bayonet | Doppler Covert 
★ Bayonet | Doppler Covert 
★ Bayonet | Damascus Steel Covert 
★ Bayonet | Ultraviolet Covert 
★ Bayonet | Rust Coat Covert 
★ Flip Knife | Marble Fade Covert 
★ Flip Knife | Tiger Tooth Covert 
★ Flip Knife | Doppler Covert 
★ Flip Knife | Doppler Covert 
★ Flip Knife | Doppler Covert 
★ Flip Knife | Doppler Covert 
★ Flip Knife | Doppler Covert 
★ Flip Knife | Doppler Covert 
★ Flip Knife | Doppler Covert 
★ Flip Knife | Damascus Steel Covert 
★ Flip Knife | Ultraviolet Covert 
★ Flip Knife | Rust Coat Covert 
★ Gut Knife | Marble Fade Covert 
★ Gut Knife | Tiger Tooth Covert 
★ Gut Knife | Doppler Covert 
★ Gut Knife | Doppler Covert 
★ Gut Knife | Doppler Covert 
★ Gut Knife | Doppler Covert 
★ Gut Knife | Doppler Covert 
★ Gut Knife | Doppler Covert 
★ Gut Knife | Doppler Covert 
★ Gut Knife | Damascus Steel Covert 
★ Gut Knife | Ultraviolet Covert 
★ Gut Knife | Rust Coat Covert 
★ Karambit | Marble Fade Covert 
★ Karambit | Tiger Tooth Covert 
★ Karambit | Doppler Covert 
★ Karambit | Doppler Covert 
★ Karambit | Doppler Covert 
★ Karambit | Doppler Covert 
★ Karambit | Doppler Covert 
★ Karambit | Doppler Covert 
★ Karambit | Doppler Covert 
★ Karambit | Damascus Steel Covert 
★ Karambit | Ultraviolet Covert 
★ Karambit | Rust Coat Covert 
★ M9 Bayonet | Marble Fade Covert 
★ M9 Bayonet | Tiger Tooth Covert 
★ M9 Bayonet | Doppler Covert 
★ M9 Bayonet | Doppler Covert 
★ M9 Bayonet | Doppler Covert 
★ M9 Bayonet | Doppler Covert 
★ M9 Bayonet | Doppler Covert 
★ M9 Bayonet | Doppler Covert 
★ M9 Bayonet | Doppler Covert 
★ M9 Bayonet | Damascus Steel Covert 
★ M9 Bayonet | Ultraviolet Covert 
★ M9 Bayonet | Rust Coat Covert All 14 standard items in this case, grouped by rarity. Drop rates per Valve's official probability disclosure.
To open the Chroma Case, you need one Chroma Case (free in-game drop or from the Steam Community Market) plus one CS2/CS:GO Case Key, which costs $2.49 USD on the Steam Marketplace. Right-click the case in your inventory and select "Open Container."
Drop rates per Valve's mandatory probability disclosure: Mil-Spec Grade ~79.92%, Restricted ~15.98%, Classified ~3.20%, Covert ~0.64%, Rare Special (★ Bayonet | Marble Fade, ★ Bayonet | Tiger Tooth, ★ Bayonet | Doppler, ...) ~0.26%. Each drop also has roughly a 10% chance to be StatTrak™ on eligible skins.
The Chroma Case rare special pool contains 60 items: ★ Bayonet | Marble Fade, ★ Bayonet | Tiger Tooth, ★ Bayonet | Doppler, ★ Bayonet | Doppler, ★ Bayonet | Doppler, ★ Bayonet | Doppler, ★ Bayonet | Doppler, ★ Bayonet | Doppler, ★ Bayonet | Doppler, ★ Bayonet | Damascus Steel, ★ Bayonet | Ultraviolet, ★ Bayonet | Rust Coat, ★ Flip Knife | Marble Fade, ★ Flip Knife | Tiger Tooth, ★ Flip Knife | Doppler, ★ Flip Knife | Doppler, ★ Flip Knife | Doppler, ★ Flip Knife | Doppler, ★ Flip Knife | Doppler, ★ Flip Knife | Doppler, ★ Flip Knife | Doppler, ★ Flip Knife | Damascus Steel, ★ Flip Knife | Ultraviolet, ★ Flip Knife | Rust Coat, ★ Gut Knife | Marble Fade, ★ Gut Knife | Tiger Tooth, ★ Gut Knife | Doppler, ★ Gut Knife | Doppler, ★ Gut Knife | Doppler, ★ Gut Knife | Doppler, ★ Gut Knife | Doppler, ★ Gut Knife | Doppler, ★ Gut Knife | Doppler, ★ Gut Knife | Damascus Steel, ★ Gut Knife | Ultraviolet, ★ Gut Knife | Rust Coat, ★ Karambit | Marble Fade, ★ Karambit | Tiger Tooth, ★ Karambit | Doppler, ★ Karambit | Doppler, ★ Karambit | Doppler, ★ Karambit | Doppler, ★ Karambit | Doppler, ★ Karambit | Doppler, ★ Karambit | Doppler, ★ Karambit | Damascus Steel, ★ Karambit | Ultraviolet, ★ Karambit | Rust Coat, ★ M9 Bayonet | Marble Fade, ★ M9 Bayonet | Tiger Tooth, ★ M9 Bayonet | Doppler, ★ M9 Bayonet | Doppler, ★ M9 Bayonet | Doppler, ★ M9 Bayonet | Doppler, ★ M9 Bayonet | Doppler, ★ M9 Bayonet | Doppler, ★ M9 Bayonet | Doppler, ★ M9 Bayonet | Damascus Steel, ★ M9 Bayonet | Ultraviolet, ★ M9 Bayonet | Rust Coat. The combined drop probability for any item from this pool is approximately 0.26% per case opening.
