– Wallet type packing,light and portable,internal type batch head bayonet fixed,not easy to scattered. – High precision screwdriver head,a high-end steel(chrome vanadium steel)by special heat treatment,hardness can reach HRC52-60. – The handle in the aviation alloy material manufacture,light and durable,the tail adopts the precision bearing design,flexible and easy to use. – With a compact and assorted package,easy to carry everywhere – As professional hardware tools,it provides you the most powerful function, Weight: 0.110231131 Pounds, Manufacturer: libo1986