G18-340 G18340 Stevenson Lacrimal Sac Retractor 3X3 Prongs 3mm Deep 3 1/4" G18-338 G18338 Meller Lacrimal Sac Retractor 3X3 Prongs 3mm Deep 2 7/8" G18-337 G18337 Agricola Lacrimal Sac Retractor 3X3 Prongs 4mm Deep 1 1/2"