Manual Crimper Vial Crimper Hand Sealing Machine Specification Material: Stainless steel Color: Silver Size: 13mm/20mm/26mm Application: Pharmaceutical, Food, Packaging, Chemical industry, Schools, Laboratories and Families, etc. Steps 1. Prepare the glass bottle, inner stopper and outer cap. 2. Put the inner stopper inside the bottle mouth. 3. Put the cap on the mouth of the glass bottle. 4. Put the cap part into the caliper. 5. Gently press the handle up and down until the rolling head is tightened (do not use excessive force). 6. Loosen the handle, restore the handle to the original position, and check that the bottle cap is not loose. 7. If the capping is not tight or smooth for the first time, it is only necessary to adjust the capping head. Rotate clockwise to loosen and counterclockwise to tighten.