... Size PackingSHB01Freeze tube,silicon ring,ungraduated 1ml 500pcs/bag,24bags/cartonSHB02Freeze tube,silicon ring,ungraduated 1ml 500pcs/bag,24bags/cartonSHB03Freeze tube,silicon ring,ungraduated 2ml ... 500pcs/bag,24bags/cartonSHB04Freeze tube,silicon ring,molded graduated ...