Plastic Knockout Plugs - Snap-In 3/16"- Our Plastic Knockout Plugs - Snap-In are low-cost and easy to use.Plastic Knockout Plugs - Snap-In 3/16" features include: Plastic Knockout Plugs - Snap-In plugs electrical knockouts with finger tip pressure Low cost and assure good appearance Snap-In winged protrusion for Positive Lock Less costly amp; safer than steel snap-in blanks 1/8 maximum steel thickness Electrical hole plugs are made from UL approved Nylon 6/6, 94V-2 Sizes listed are actual (not trade sizes) Dimension Measurements = Inches Order Qty of 10 = 1 Bag of 10 Below is more info on our Plastic Knockout Plugs - Snap-In 3/16"