Quadloop Inoculation Loops Quadloop Sphere with 10 ul calibrated loop, Sterile, 20 per Peel-apart Pouch, 1000 per Box Save time and money with the Quadloop inoculation device. One side has a traditional calibrated 10 l or 1l loop or a picking needle. The other side features our unique, patented sphere which allows dilution streaking with one device instead of 4 loops. Simply rotate the handle one-quarter turn after each streaking. There is no need to change loops or sterilize between steps. The Quadloop sphere glides effortlessly across the agar surface without gouging or plowing! Safer and easier than metal loops! No need to flame, these disposable loops are already sterile Save time when dilution streaking - no need to change loops Accurate calibrated loops at the opposite end