12 Pack Retractable Feather Duster (12 to 16 Inches)

I own a cleaning company and these caught my eye because they looked exactly like the more expensive ones I'd been using.My 1st observation was the plastic is thinner, and the thumb retractors are less sturdy. The screws easily come loose and then pop out.The feathers I suspect are synthetic and not ostrich. They were about half the size and density of the more expensive versions.Overall, I will pay more for the quality