Simply insert the OXO Good Grips Shrimp Cleaner intothe end of the shrimp and the ridged edge will split the shell and remove the vein inone motion. The guard helps protect your hands while you?re working with slipperyshrimp, and the asymmetrical design allows for use at a variety of angles. A soft handlemakes this Shrimp Cleaner comfortable to use and non-slip, even in wet hands