LeLoop® – Made of high quality twisted nichrome wire, LeLoops are more economical than platinum or disposable plastic loops. Loops slide smoothly across the agar surface without tearing or gouging. The nichrome wire cools rapidly saving time. Loops are available calibrated and non-calibrated. All calibrated loops are subject to Evan’s Blue Dye Test. The loop holders, available separately, are made of nickel-plated brass with well-insulated handles.