... ,1/2,5/8,&3/4 O.D Tubing,6mm,8mm,10mm,12mm,16mm,&19mm O.D TubingPacked in hand carrying plastic case ... 1/2,5/8&3/4 O.D Tubing5mm,6mm,8mm,10mm,12mm,16mm,&19mm O.D Tubing Packed in hand carrying plastic ... ,1/2,5/8,&3/4 O.D Tubing,6mm,8mm,10mm,12mm,16mm,&19mm O.D TubingPacked in hand carrying plastic case ... /2,5/8,&3/4 O.D Tubing,5mm, 6mm,8mm,10mm,12mm,16mm,&19mm O.D TubingPacked in hand carrying plastic case ...