IVY Classic 45838 1/4 x 23" Mega-Magnetic Bit Holder, Impact Plus, 1/Card 40X THE PULLING POWER: Mega-Magnetic Bit Holder features 2 powerful magnets which create 40x the pulling power of an ordinary magnetic bit holder (Mega-Magneticis a Registered Trademark) TWO POWERFUL MAGNETS: The internal magnet (#1) holds and magnetizes the bit while the outer circular ring magnet (#2) powerfully holds your fastener in place - see photo IMPACT PLUS: Stainless steel front construction is designed to withstand the high torque of impact drivers(Impact Plus is a Registered Trademark) VERSATILE: 23" length enables reaching high without a ladder and down without bending and features a non-rotating outer sleeve for safety, works with all 1" hex insert bits. PATENTED IN USA: Size 1/4" hex, Length: 23", Shank: 1/4" hex power