It secures bottles and reduces the chance of collision, cracking, or breakage. Thermo Scientific™ Nalgene™ 500mL LLDPE Safety Bottle Carriers offer increased stiffness and impact resistance. The sturdy wide handle is integrally molded into the base for comfortable holding even when the bottle carrier is full. This linear low-density polyethylene bottle carrier can accommodate up to six standard 500mL reagent bottles in any shape.