Plum polystyrene dust-proof wall box made of maintenance-free material for easy and quick first aid for eye injuries; regardless of the circumstances, a quick response is usually required when the eye is hit; therefore, you must be well prepared in the workplace with the right first aid supplies; Plum Combi-Box DUO Maxi contains 500 ml eyewash pH neutral 4.9% and 1000ml eyewash 0.9% sodium chloride solution; both DUO containers are intended for rinsing both eyes at the same time; box dimensions: h 35.7 x w 25.2 x d 11.6 cm