Protect your electrical connections with NESCO's 3/4 Inch X 15/16 Inch Knockout Bushing. Constructed from lightweight, corrosion-proof, and strong 6/6 nylon, these bushings are ideal for use with electrical knockouts. Their fast and easy snap-in installation makes them perfect for boxes or enclosures undergoing maintenance or modifications. The smooth, rounded surface facilitates easy wire pulling and resists wear, abrasion, and damage from vibrations, capable of withstanding a push-back force of over 35 pounds. Available in black.This NESCO knockout bushing, model SB109315, is made of 6/6 nylon and is black in color. It is designed for electrical knockouts and features a smooth, rounded surface for easy wire pulling. The bushing is resistant to wear, abrasion, and vibration damage, and can withstand a push-back force exceeding 35 pounds. It is UL recognized and CSA certified. The trade size is 1/2 inch, and the dimensions are 3/4 inch x 15/16 inch.