Comparison : Item # C6640-0750-48-24, Nylon 6 HS Blue
Item # 6640-075048120, Nylon 6 HS Blue
Item # C6640-0750-48-1, Nylon 6 HS Blue
Item # C6640-0750-48-1.5, Nylon 6 HS Blue
Item # C6640-0750-48-2, Nylon 6 HS Blue