These items share the case's "Rare Special" probability pool. Each case opening has approximately a 0.26% chance to drop one of these.
★ Navaja Knife Covert 
★ Navaja Knife | Fade Covert 
★ Navaja Knife | Crimson Web Covert 
★ Navaja Knife | Slaughter Covert 
★ Navaja Knife | Case Hardened Covert 
★ Navaja Knife | Urban Masked Covert 
★ Navaja Knife | Blue Steel Covert 
★ Navaja Knife | Night Stripe Covert 
★ Navaja Knife | Stained Covert 
★ Navaja Knife | Forest DDPAT Covert 
★ Navaja Knife | Boreal Forest Covert 
★ Navaja Knife | Scorched Covert 
★ Navaja Knife | Safari Mesh Covert 
★ Stiletto Knife Covert 
★ Stiletto Knife | Fade Covert 
★ Stiletto Knife | Crimson Web Covert 
★ Stiletto Knife | Slaughter Covert 
★ Stiletto Knife | Case Hardened Covert 
★ Stiletto Knife | Urban Masked Covert 
★ Stiletto Knife | Blue Steel Covert 
★ Stiletto Knife | Night Stripe Covert 
★ Stiletto Knife | Stained Covert 
★ Stiletto Knife | Forest DDPAT Covert 
★ Stiletto Knife | Boreal Forest Covert 
★ Stiletto Knife | Scorched Covert 
★ Stiletto Knife | Safari Mesh Covert 
★ Talon Knife Covert 
★ Talon Knife | Fade Covert 
★ Talon Knife | Crimson Web Covert 
★ Talon Knife | Slaughter Covert 
★ Talon Knife | Case Hardened Covert 
★ Talon Knife | Urban Masked Covert 
★ Talon Knife | Blue Steel Covert 
★ Talon Knife | Night Stripe Covert 
★ Talon Knife | Stained Covert 
★ Talon Knife | Forest DDPAT Covert 
★ Talon Knife | Boreal Forest Covert 
★ Talon Knife | Scorched Covert 
★ Talon Knife | Safari Mesh Covert 
★ Ursus Knife Covert 
★ Ursus Knife | Fade Covert 
★ Ursus Knife | Crimson Web Covert 
★ Ursus Knife | Slaughter Covert 
★ Ursus Knife | Case Hardened Covert 
★ Ursus Knife | Urban Masked Covert 
★ Ursus Knife | Blue Steel Covert 
★ Ursus Knife | Night Stripe Covert 
★ Ursus Knife | Stained Covert 
★ Ursus Knife | Forest DDPAT Covert 
★ Ursus Knife | Boreal Forest Covert 
★ Ursus Knife | Scorched Covert 
★ Ursus Knife | Safari Mesh Covert All 17 standard items in this case, grouped by rarity. Drop rates per Valve's official probability disclosure.
To open the Horizon Case, you need one Horizon 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 (★ Navaja Knife, ★ Navaja Knife | Fade, ★ Navaja Knife | Crimson Web, ...) ~0.26%. Each drop also has roughly a 10% chance to be StatTrak™ on eligible skins.
The Horizon Case rare special pool contains 52 items: ★ Navaja Knife, ★ Navaja Knife | Fade, ★ Navaja Knife | Crimson Web, ★ Navaja Knife | Slaughter, ★ Navaja Knife | Case Hardened, ★ Navaja Knife | Urban Masked, ★ Navaja Knife | Blue Steel, ★ Navaja Knife | Night Stripe, ★ Navaja Knife | Stained, ★ Navaja Knife | Forest DDPAT, ★ Navaja Knife | Boreal Forest, ★ Navaja Knife | Scorched, ★ Navaja Knife | Safari Mesh, ★ Stiletto Knife, ★ Stiletto Knife | Fade, ★ Stiletto Knife | Crimson Web, ★ Stiletto Knife | Slaughter, ★ Stiletto Knife | Case Hardened, ★ Stiletto Knife | Urban Masked, ★ Stiletto Knife | Blue Steel, ★ Stiletto Knife | Night Stripe, ★ Stiletto Knife | Stained, ★ Stiletto Knife | Forest DDPAT, ★ Stiletto Knife | Boreal Forest, ★ Stiletto Knife | Scorched, ★ Stiletto Knife | Safari Mesh, ★ Talon Knife, ★ Talon Knife | Fade, ★ Talon Knife | Crimson Web, ★ Talon Knife | Slaughter, ★ Talon Knife | Case Hardened, ★ Talon Knife | Urban Masked, ★ Talon Knife | Blue Steel, ★ Talon Knife | Night Stripe, ★ Talon Knife | Stained, ★ Talon Knife | Forest DDPAT, ★ Talon Knife | Boreal Forest, ★ Talon Knife | Scorched, ★ Talon Knife | Safari Mesh, ★ Ursus Knife, ★ Ursus Knife | Fade, ★ Ursus Knife | Crimson Web, ★ Ursus Knife | Slaughter, ★ Ursus Knife | Case Hardened, ★ Ursus Knife | Urban Masked, ★ Ursus Knife | Blue Steel, ★ Ursus Knife | Night Stripe, ★ Ursus Knife | Stained, ★ Ursus Knife | Forest DDPAT, ★ Ursus Knife | Boreal Forest, ★ Ursus Knife | Scorched, ★ Ursus Knife | Safari Mesh. The combined drop probability for any item from this pool is approximately 0.26% per case opening.
