Features: 1. Our O-Ring Assortment Kit uses high quality nitrile rubber with the perfect thickness that provides a balance of strength and flexibility for leak-free machines. 2 This metric freeze and corrosion resistant o-ring provides secure seals for hydraulic fluids in toilets and kitchens and fits your tools perfectly. 3. Different rubber O-rings are placed in a sturdy plastic storage box, each size with detailed label paper, are stored in order from smallest to largest for easy retrieval. 4. These O-rings can also be used in appliances by plumbers and DIYers to seal pipes and repair leaks in sink pipes, tubs, septic lines, etc. 5. Packed in a clear plastic storage case with snap lid, each individually organized and by size, portable and easy to store. Note: *Actual color may vary slightly different from the picture due to different display and light effects. *Please allow 1-3cm differs due to manual measurement. Description: Box Size: 22*11.2*3cm. Includes: 1 Set x O-Ring Assortment Kit.