The Spy Snap UV adds a propeller to the lure's attachment point to produce additional vibrations. It is recommended for use with soft lures: the turbulence it creates can disrupt the action of a swimming lure.
The Spy Snap combines a clip and a propeller. It allows you to modify the action of a soft lure rig without changing the lure body.
On a hard lure, the turbulence created by the propeller can alter the swimming action.
The breaking strengths are 20 kg for size S, 30 kg for size M, and 45 kg for size L.