Complete 12piece sleeve set with one ratchet wrench. The ergonomic handle provides a comfortable grip and greatly reduces working pressure. Sleeve sizes are 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm and 13 mm (12 pieces). The set includes one ratchet wrench. Made of quality materials, heattreated, anticorrosive and antirust. Key benefits Full range of sizes for versatile compatibility with bolts and nuts from 4 to 13 mm. Ergonomic handle design for comfortable operation and reduced hand fatigue during extended use. Durable construction with heattreated, corrosionresistant materials for long service life. Includes a readytouse ratchet wrench for efficient turning and faster work. Specifications Sleeve sizes: 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm (12 pieces) Includes: one ratchet wrench Material and treatment: quality materials, heattreated, anticorrosive and antirust Use scenarios Automotive and mechanical repairs: quickly swap sleeves to fit different fasteners in engines, grills, and panels. Bicycle maintenance: adjust components such as seat clamps, stems, and crank bolts with different sleeve sizes. Home and furniture assembly: tighten or loosen fasteners across frames, brackets, and hardware with precision and ease.