All 91 standard items in this case, grouped by rarity. Drop rates per Valve's official probability disclosure.
Sawed-Off | Snake Camo 
AK-47 | Safari Mesh 
Five-SeveN | Orange Peel 
MAC-10 | Palm 
Tec-9 | VariCamo 
USP-S | Forest Leaves 
AUG | Condemned 
MP9 | Orange Peel 
G3SG1 | VariCamo 
Galil AR | VariCamo 
M249 | Gator Mesh 
Nova | Candy Apple 
UMP-45 | Gunsmoke 
P2000 | Granite Marbleized 
Dual Berettas | Stained 
M4A1-S | Boreal Forest 
XM1014 | CaliCamo 
XM1014 | Blue Steel 
AWP | Safari Mesh 
Desert Eagle | Mudder 
FAMAS | Cyanospatter 
PP-Bizon | Night Ops 
MAC-10 | Candy Apple 
M4A4 | Urban DDPAT 
MAG-7 | Metallic DDPAT 
P250 | Metallic DDPAT 
SCAR-20 | Carbon Fiber 
P90 | Ash Wood 
Glock-18 | Groundwater 
MP7 | Orange Peel 
SSG 08 | Tropical Storm 
Negev | CaliCamo 
SG 553 | Gator Mesh 
G3SG1 | Desert Storm 
P250 | Sand Dune 
SCAR-20 | Sand Mesh 
P90 | Sand Spray 
MP9 | Sand Dashed 
Nova | Predator 
Dual Berettas | Contractor 
SCAR-20 | Contractor 
SSG 08 | Blue Spruce 
Tec-9 | Army Mesh 
MP7 | Army Recon 
Tec-9 | Groundwater 
AUG | Contractor 
FAMAS | Colony 
Nova | Sand Dune 
PP-Bizon | Sand Dashed 
P250 | Boreal Forest 
XM1014 | Blue Spruce 
AUG | Storm 
Galil AR | Sage Spray 
SG 553 | Waves Perforated 
G3SG1 | Jungle Dashed 
UMP-45 | Urban DDPAT 
Dual Berettas | Colony 
G3SG1 | Polar Camo 
Five-SeveN | Forest Night 
Nova | Polar Mesh 
PP-Bizon | Urban Dashed 
P250 | Bone Mask 
Five-SeveN | Contractor 
AUG | Colony 
G3SG1 | Safari Mesh 
P90 | Scorched 
Galil AR | Hunting Blind 
PP-Bizon | Brass 
M4A1-S | VariCamo 
SG 553 | Damascus Steel 
FAMAS | Teardown 
Five-SeveN | Silver Quartz 
SSG 08 | Acid Fade 
Glock-18 | Candy Apple 
MP7 | Anodized Navy 
Sawed-Off | Full Stop 
SG 553 | Anodized Navy 
USP-S | Night Ops 
P90 | Teardown 
Desert Eagle | Urban Rubble 
Sawed-Off | Amber Fade 
MP9 | Hot Rod 
UMP-45 | Blaze 
MAC-10 | Amber Fade To open the EMS One 2014 Souvenir Package, you need one EMS One 2014 Souvenir Package (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 (knife/gloves) ~0.26%. Each drop also has roughly a 10% chance to be StatTrak™ on eligible skins.
