˙ Made of PP material, resistant to high temperature and high pressure sterilization
˙Can be directly put on the test tube, no need to insert cotton objects in the cap
˙Users can put on and take off the tube cap conveniently
ID13,16,18mmPackage pk of 100/cs of 1000
ID20, 25mm packaging pk of 100/cs of 500
ID38mm packaging pk of 50/cs of 250