This item is 2 boxes of 220pcs grease fitting assortment kit, which is used to feed lubricant into a bearing. They come with different sizes and types for different needs. Include a plastic case for easy storage and sizing chart for easy identification. They will be a good choice for you. Features -Color: Silver. -Material: Galvanized steel. -Size: About 2.50X1.20X1.20cm/0.98X0.47X0.47in. -Specifications: M6, M8, M10. - Manufactured with quality metal, they are strong, rust-proof and . - Feed lubricant into the bearing without disassembling parts. - Include different types to meet your need such as 90-degree, 45-degree angled fittings and straight fittings. - Suitable for automotive use and solving incompatibility issues. - Come with plastic cases for easy storage. Sizing chart is included for simple identification. Package list: 60 x M6X1 straight grease fittings 5 x M6X1 45° grease fittings 5 x M6x1 90° grease fittings 10 x M8X1 straight grease fittings 5 x M8X1 45° grease fittings 5 x M8x1 90° grease fittings 5 x M10X1 45° grease fittings 5 x M10X1 90° grease fittings 10 x M10X1 straight grease fittings 30 x 1/4-28 straight grease fittings 15 x 1/14-28 45° grease fittings 15 x 1/4-28 90° grease fittings 20 x 1/8-27 straight grease fittings 15 x 1/8-27 45° grease fittings 15 x 1/8-27 90° grease fittings