Comparison : Item # SS-2-HLN-1.50, Hex Long Nipple
Item # SS-2-HLN-2.00, Hex Long Nipple
Item # SS-2-HLN-2.50, Hex Long Nipple
Item # SS-2-HLN-3.00, Hex Long Nipple
Item # SS-4-HLN-1.50, Hex Long Nipple