NovaLock™ Bottles are designed to be the easiest and most convenient dilution bottle available. No shrink wrap to remove and no strips to pull. The patented lockdown technology keeps the lid firmly in place during shipping and storage. The bottles can be effortlessly and aseptically opened by simply pressing upward on the lockdown tab. Color-coded tamper evident labels identify the type and volume of diluent in the NovaLock dilution bottle. The 1 ¾ inch (4.3 cm) wide opening makes it easy to add even bulky powder samples to the NovaLock dilution bottle.