KINGHEART has over 40 years of experience in product development, and we have extensive capabilities in plastic injection molding. Product Description SUSPENSION MECHANISM - Ever felt stress and pain on your wrist while screwing? I-RATCHET screwdriver's handle is connected to the body(shank) with special elastic material. Provides more flexible palm and wrist positioning while using. Adjust your wrist angle position up to 30°. Reduces stress and pain from your wrist. ELASTIC TORQUE ASSIST - Fasten and unfasten tight screws at ease! The special elastic material connecting I-RATCHET screwdriver's handle and body(shank) provides additional torque assist. It stretches under rotating pressure, and returns the torque onto the screw which makes it easier to fasten and unfasten. RATCHETING SYSTEM - 48-teeth ratcheting system on I-RATCHET screwdriver delivers extra smooth operating experience. Three-position ratchet (standard, clockwise and counter clockwise) allows using versatility in difference situations. QUICK RELEASE BIT HOLDER - Tired of bits falling out of the screwdriver? I-RATCHET screwdriver is equipped with quick release bit holder. Bits will stay on the screwdriver the whole time when using. Slide the collar to insert and release the bit. Compatible with standard 1/4 inch size hex bits. CONVINIENT HANG TAG - Reusable and tough tags provide a storage after each pleasurable experience.