A perfect sized jar to fit your 1 gram to 3.5 grams of flower depending on the density. This Child Resistant push down and turn closures meet all CPSC 16.CFR 1700.20 requirements. This jar has a 53-400 neck finish, and will fit closures with the same finish. The first number is the diameter of the container's opening (in mm). The second number refers to the thread/style/depth of the closure's skirt.
