The VMC Sinker Stop is a high density neoprene stopper designed to peg the weight close to the hook on a punch, flipping or pitching rig. Eliminates crimping and possible damage to line while securely holding the weight in place.FeaturesSmall - for line diameter between 4-8 lb testMedium - for line diameter between 8-12 lb testLarge - for line diameter between 12-20 lb test