Material: High quality chrome-nickel stainless steel (304), anti-oxidation, corrosion resistance, acid and alkali resistance. They are also well processed, that no sharp edges damage the pipes and are very stable. You can use them both indoors and outdoors without worry. Easy to use: the gear clamps are designed to fix a hose with the appropriate diameter on a connection nozzle and they can be easily adjusted by a screwdriver to fit your pipes or tubes, can be screwed easily. Multiple size options: 78-101mm width 12mm with thread to meet your different needs. Widely used: Perfectly suitable for your swimming pool, pool hose, your pond pump, pond hose, the washing machine, sand filter pump, swimming pool pump, sand filter system, suction system, hose air, dryer, home filter system, irrigation system, garden, workshop and much more. Package: contains 12 hose clamps, enough to meet your different needs, enough for you allow to replace them in your daily life. Note: Other items are not