Swim Stim Amino Original Pro Expanders 4mm 300g
The Hookbait Perfectionist.
Stop struggling with "mushy" pellets that fly off the hook. Swim Stim Pro Expanders are engineered for the precision angler who needs a consistent, durable, and high-attract hookbait. Using exclusive Koi Technology, these pellets are designed to be soaked or pumped, transforming from a hard, floating pellet into a soft, spongy, sinking winner that stays on the hook cast after cast.
Robust Texture: Unlike standard expanders, the "Pro" version has a unique, resilient structure. Once prepared, they are incredibly firm, allowing you to ship out on the pole or even make short casts without losing your bait.
Amino Original Formula: Infused with the legendary Amino Original attractors and boosted with Betaine. It triggers an aggressive feeding response, making it the perfect match for the rest of the Swim Stim range.
Preparation Versatility: They can be prepared quickly with a pellet pump for an instant sinking bait, or simply left to soak in water (or a flavored soak) the night before for a "natural" swell.
Neutrally Buoyant: Once soaked, they have a near-perfect neutral buoyancy in the water, making them look completely natural to suspicious fish and ensuring they fly into the fish's mouth at the slightest intake.
The Bottom Line: These are the gold standard for soft hook pellets. They’re easy to prep, stay on the hook, and are packed with the most successful commercial attractants ever made.