1、Made of non-toxic, high hardness, durable, accurate chrome vanadium steel. 2、The tip of the screwdriver is magnetic and slip resistant. 3、The extra extensions extend the handle and are easy to reach in narrow places. 4、Ergonomic anti-slip handle for high comfort and accuracy. 5、Small screwdriver set for easy carrying and storage and work at home, lightweight and compact. 30 x Screwdriver Bits8 x Socket1 x Adapter1 x Extension Rod2 x Screwdriver Handle Item Type:Screwdriver Bit Kit4mmx28mm CR-V Nickel Plated Accurate BitsSlotted: 1.5- 2.0Cross:#1-#2-#3Star:T5-T6-T7-T8Square:1mm 2mmPZ:# 16.35mmx25mm CR-V Accurate Bits,the surface sandblastingSlotted:3mm 4mm 5mmCross:#1-#2-#3PZ:#1-#2-#3Hex:3mm 4mm 5mmStar:T15 T20 T25Square:1mm 2mm 3mmSocket:5mm  6mm  7mm  8mm  9mm  10mm   11mm   12mm1pc 60mm Magnetic Extension Bar1pc ADA1pc Ratchet Screwdriver Handle1pc T-Type Ratchet Screwdriver Handle