All 72 standard items in this case, grouped by rarity. Drop rates per Valve's official probability disclosure.
Orange Gnar 
Blue Gnar 
Green Gnar 
Purple Gnar 
Yellow Jaggyfish 
Pink Jaggyfish 
Purple Jaggyfish 
Black Jaggyfish 
Blue Lethal 
Green Lethal 
Fade Lethal 
Yellow Lethal 
Green Shark Shooter 
Black Shark Shooter 
Blue Shark Shooter 
Red Shark Shooter 
Green Cyclawps 
Red Cyclawps 
Purple Cyclawps 
Yellow Cyclawps 
Purple Bombster 
White Bombster 
Green Bombster 
Yellow Bombster 
Watermelon Tentaskull 
Blood Moon Tentaskull 
Sunset Ocean Tentaskull 
Toxic Tentaskull 
Watermelon Stabbyfish 
Miami Stabbyfish 
After Hours Stabbyfish 
Ocean Sunset Stabbyfish 
Miami Wave Rider 
Blood Moon Wave Rider 
Toxic Wave Rider 
Fools Gold Wave Rider 
Candy Buttery (Holo) 
Flame Buttery (Holo) 
Watermelon Buttery (Holo) 
Miami Buttery (Holo) 
Opal Flick (Holo) 
Ocean Sunset Flick (Holo) 
Mercury Flick (Holo) 
Miami Flick (Holo) 
Watermelon Flow (Holo) 
Toxic Flow (Holo) 
Cotton Candy Flow (Holo) 
Miami Flow (Holo) 
Miami Skill Surf (Holo) 
Ocean Sunset Skill Surf (Holo) 
Coral Skill Surf (Holo) 
Bubble Gum Skill Surf (Holo) 
Abalone Strafe (Holo) 
Watermelon Strafe (Holo) 
Mood Ring Strafe (Holo) 
Neon Opal Strafe (Holo) 
Flame Tier6 (Holo) 
Watermelon Tier6 (Holo) 
Miami Tier6 (Holo) 
Forge Tier6 (Holo) 
Sticker Bomb Surf Ava (Foil) 
Dragon Lore Surf Ava (Foil) 
Akihabara Accept Surf Ava (Foil) 
Dark Water Surf Ava (Foil) 
Sticker Bomb Surf K (Foil) 
Hypnotic Surf K (Foil) 
Fire Serpent Surf K (Foil) 
Blaze Surf K (Foil) 
Ultraviolet Poison Frog (Foil) 
Lore Poison Frog (Foil) 
Crimson Web Poison Frog (Foil) 
Doppler Poison Frog (Foil) To open the Riptide Surf Shop Sticker Collection, you need one Riptide Surf Shop Sticker Collection (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.
