Comparison : Item # C6500-1250-48-1, Nylon 6 FDA Natural
Item # C6500-1250-48-1.5, Nylon 6 FDA Natural
Item # C6500-1250-48-2, Nylon 6 FDA Natural
Item # C6500-1250-48-2.5, Nylon 6 FDA Natural
Item # C6500-1250-48-3, Nylon 6 FDA Natural