Durable, non-breakable polystyrene (PS) spreaders pose no safety hazard like glass spreaders L-shaped for convenient "lazy" spreading; just turn the Petri dish for smooth, even sample distribution...
Durable, non-breakable polystyrene (PS) spreaders pose no safety hazard like glass spreaders T-shaped for convenient "lazy" spreading; just turn the Petri dish for smooth, even sample distribution...