MATERIAL: Made from Stainless steel 6 piece spanner sizes - 10/11mm, 12/13mm, 14/15mm,16/17mm, 18/19mm & One Drive Bar, 150mm Long Tommy Bar. PORTABLE AND LIGHTWEIGHT DESIGN: This spanners set are the type of pliers, spanners & wrenches. Which is lightweight and easily portable anywhere a plumber desires. CONVENIENT STORAGE: These spanners are short in size and lightweight so it’s easy to store and carry for a plumber. double ended metric tubular box spanner set is a professional tool set. DURABLE: Made of Stainless steel is ideal for all indoor and outdoor environments. Use it to warn people of temporary hazards in offices, stores, malls, warehouses, and homes. USES: Ideal for accessing nuts and bolts in hard-to-reach places. It is for automotive repair, plumbing, maintenance work, etc. For professional or DIY use., Weight: 0.220462262 pounds, Manufacturer: Dapetz