• Includes 10 hex keys in sizes: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 5.5mm, 6mm, 8mm, and 10mm. • Book-style design for easy and organized access and storage. • Made with high-quality materials to ensure durability and strength. • Each key is clearly marked and arranged by size for quick identification. • Versatile tool suitable for DIY tasks and professional applications. • Product dimensions: 21.5 cm long, 10 cm high, and 2.3 cm wide. • Total product weight: 0.299 kg.