Features: Perfect for hard to reach workspaces, set covering 24.4cm, 28cm, 33.4cm, 37.5cm, 40.5cm, 41.5cm. 6 double-head wrenches covering sizes 8mm x 10mm, 9mm x 11mm, 12mm x 14mm, 13mm x 15mm, 16mm x 18mm, 17mm x 19mm. Box end heads pivot 180 degrees to get around obstructions quickly. Snug-fit hex-shaped fastener heads resist slipping off while you work. 12 point, 72 teeth ratchet gear needs a minimum of 5-degree swing arc that is perfect for any professional mechanic tool set or home improvement jobs. Constructed from high strength chrome vanadium steel with corrosion-resistant and fingerprint-proof matte chrome finish for durability. Specifications: Material: for Cr-v Quantity: 6pcs/set Size: 8. 10mm Lenght:245mm Size: 9.11mm Lenght:280mm Size:12. 14mm Lenght:335mm Size: 13.15mm Lenght:380mm Size:16.18mm Lenght:413mm Size:17.19mm Lenght:417mm Package Includes: 6x Ratcheting Wrench Set note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.