Function: Ratchet screwdriver attached to tighten or loosen fasteners; Ideal for working on popular electrical appliances, such as air conditioners, washing machines, refrigerators, televisions, etc. Features: Non-slip handles provide a comfortable grip, make your work easier and more efficient Material: The ratchet screwdriver set is made of aerospace engineering plastics, high explosion resistance, corrosion resistant and durable Effective: the set of mini ratchet screwdriver is equipped with the handle which is suitable for screw head screwing and reduce hand fatigue Color: Plum Self-Locking Handle DescriptionThe ratchet screwdriver set has two types of handles, large and self-locking, suitable for 4mm or 1/4 inch handle screwdriver bits. The high-strength screwdriver handle uses aerospace engineering plastics, high-strength anti-explosion work, corrosion-resistant, durable and comfortable to hold.FeaturesRatchet screwdriver set- Color: as shown.- Material: plastics aerospace