Practical use tip: Sort rings by intended use (sealing vs crafting) store in a cool dry place clean gently with a soft cloth before application and test fit briefly to ensure optimal performance for your specific taskMaterial:Nitrile butadiene rubber NBR(Black)Temperature:-25 to 100Shore Hardness: 70°Wire Diameter CS :1mm/1.5mm/2mm/3mm/4mmApplication:Nitrile butadiene rubberO-ring provides sealing and prevents leaking for a wide range of applications such as plumbing, machinery, hydraulic and pneumatic repairs, etcModel Number : CS 1.0mm 1.5mm 2mm 2.4mm 3.1mm 4mmMaterial : RubberShape : Ring GasketTemperature : -25Deg.C ~ 100Deg.CThickness : 1.0mm 1.5mm 2mm 2.4mm 3.1mm 4mmQTY:2setsNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement. Versatile fit: Deliver reliable sealing for auto parts plumbing fixtures mechanical bearings and creative crafting projects meeting diverse repair and creation needs across home workshop and hobby scenarios Durable performance: Maintain consistent elasticity and structural stability across varying temperature conditions supporting long-term use in daily repairs and craft creations without frequent replacement Organized storage: Come with labeled compartmentalized cases and precision tools that simplify sorting picking and storing ensuring quick access to the right piece for immediate projects saving time and effort Wide size range: Offer diverse dimension options that fit most standard applications from small sensors to large pressure pipes and craft embellishments eliminating the need for multiple separate purchases Smooth reliable use: Feature seamless construction that ensures secure fitting for sealing tasks and easy attachment of beads feathers or other decorations for crafting providing hassle-free operation Color 3230pcs Model hougna Brand Name hougna Part Number IIXNXRNSH-3230PCS Manufacturer hougna