characteristic: Including a total of 14 sleeves, 6.3mm connectors: E4, 5, 6, 7, 8; 10.0mm connectors: E10, 11, 12, 14, 16; 12.5mm connectors: E18, 20, 22, 2. The size of each sleeve is clearly engraved on the side for easy identification. Widely used DIY, auto parts, woodworking, professional machine maintenance, etc. Made of high-quality materials, durable, corrosion-resistant and rust-resistant. describe Name: sleeve set Specification: 1/2, 3/8, 1/4 Material: Metal colour: Silver Package Contents: 1 x Sleeve set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.