Safety hypodermic needle—20 gauge, 1 inch length with ultra-thin wall construction. Reinforced needle-locking mechanism substantially reduces needlestick injury risk. Minimalist design prioritizes safety without operational complexity. ISO-compliant with yellow color-coded hub for immediate gauge identification. Meets OSHA Safety Engineered Sharps standards. Textured finger and thumb grips with ridged surfaces facilitate confident single-handed activation via finger, thumb, or hard surface engagement. Audible and tactile confirmation signals proper needle shielding. Bevel-up orientation. Box of 100 units.