Feature:1. [1200PCS IN 1 SET] Including 1200pcs O shaped sealing gaskets, sufficient in quantity, easy to use and replace.2. [NITRILE RUBBER] Using excellent nitrile rubber material, static electricity prevention, high temperature and corrosion resistance.3. [24 COMMON SIZES] The O shaped rubber rings kit has 24 common sizes to meet a variety of safety sealing requirements.4. [GOOD SEALING] Used for leakage protection in pipeline, mechanical, hydraulic and pneumatic maintenance, providing good sealing.5. [WITH STORAGE BOX] All nitrile rubber O rings are sorted and placed in plastic boxes for easy identification and access.Specification:.Item Type: O Ring Sealing GasketMaterial: Nitrile RubberSize (Outer Diameter x Thickness)Quantity6 x 1.5mm1006.5 x 1.5mm1007 x 1.5mm1008 x 1.5mm1009 x 1.5mm10010 x 1.5mm10011 x 1.5mm10012 x 1.5mm10013 x 1.5mm5014 x 1.5mm5015 x 1.5mm5016 x 1.5mm5017 x 2.4mm2018 x 2.4mm2019 x 2.4mm2020 x 2.4mm2021 x 2.4mm2022 x 2.4mm2023 x 2.4mm2024 x 2.4mm2025 x 3.1mm1026 x 3.1mm1027 x 3.1mm1028 x 3.1mm10Package List:1200 x Rubber GasketNote:Match the appropriate size before use, keep away from children.