Description: This round feather wrench set is made of high-quality stainless steel, rust-proof, wear-resistant, accurate and smooth. A plastic box makes it easy to recognize and store parallel keys. It is suitable for attaching a wide variety of devices. Features: Combine mix size 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, meet your different needs. Rust-proof, wear-resistant and high expansion capacity. 140 pieces are enough for multiple choices. Equipped with a plastic box, you can classify these feather keys in an organized way, more convenient to carry and remove. Accurate process, smooth surface, no blurring. Mainly used for fixing devices that are disassembled frequently. Specification:Material: stainless steelWeight: 400g Contents:3*3*8mm 10pcs3*3*10mm 10pcs3*3*12mm 10pcs3*3*16mm 10pcs4*4*10mm 10pcs4*4*12mm 10pcs4*4*16mm 10pcs4*4*20mm 10pcs5*5*12mm 10pcs5*5*16mm 10pcs5*5*20mm 10pcs5*5*25mm 10pcs6*6*16mm 5pcs6*6*20mm 5pcs6*6*25mm 5pcs6*6*30mm 5pcs Package incleded:1 x Box of Round Key with Feathers (140 pieces included)