12 Pcs 157mm Spring Clamps helps you fix many structures; The clamping springs ensure firm clamping; Spring clamps can fix complex clamping tasks on models or hard-to-reach areas with spring clamps, also suitable for fixing sensitive parts, corners or edges; Spring clamps also make life more convenient. Suitable for photography, fixed photo props; Wood products, fixed glued wood panels; Crafts, model making; Swimming pool cover; Nylon material to improve the strength and durability of Spring Clamps; Spring clamps with a 45-degree rotating jaw, capable of creating a perfect balance between clamping forces, it adapts optimally to the workpiece;