GEON Single-Stage 14mm Springs are high-quality coil springs made from STS304 BR, Ni-Mo, and KOS, specifically designed for mechanical keyboard switches. They feature a free length of 22 mm (with a tolerance of ±0.02 mm) and a coil diameter of 4.05 mm (±0.02 mm). The wire diameter varies between 0.22 mm and 0.25 mm, resulting in consistent and precise spring action. The springs offer a bottom-out weight between 45 g and 70 g (±0.3 g), ideal for users who prefer a specific responsiveness from their switches. Manufactured by GEONWORKS in South Korea, these springs are synonymous with high quality, durability, and consistent performance – perfect for discerning keyboard enthusiasts.