The STB-1 and STB-2 thumb button releases offer precision and comfort with enhanced ergonomics, tailored for a fully customizable shooting experience. Featuring adjustable travel, tension, and thumb button positioning, these releases ensure smooth performance with their open auto-return hook and double sear trigger. Designed for versatility, they include 3- and 4-finger extensions with adjustable angles for a perfect fit. The STB-1 is ideal for smaller hands, while the STB-2 accommodates those preferring a larger grip. Both models come with a convenient lanyard connection and a sleek, modern design.