The hydraulic seals manufacturer JR SEAL has several kinds of hydraulic cylinder o ring kits packaging that can be provided to choose from, the products in addition to different sizes, there are a variety of materials, and there are fluoroelastomer, NBR and SFKM.
Grommets are mainly used to fill up the holes in your office or house. These are tiny elements which give you a lot of benefits. There is a say that big things come with small packages. Grommets are exactly the same.