These 500mL wash bottles have LDPE bodies and color-coded polypropylene screw closures. The LDPE (low-density polyethylene) body is lightweight, flexible, and elastic, has an opaque hue, and resists impact, stress cracks, and moisture absorption. The wide-mouth bottle with polypropylene cap eases filling and reduces spills. Leakproof molded tubulation allows contents to be dispensed without tipping or shaking, and a fine tip provides uniform ultrafine stream or can be cut to increase flow. The bottle can withstand being inverted for up to 15 minutes with no water escape.