The nylon Bushings convert raw-edged holes to smooth, neat, insulated holes.
They insulate and mechanically protect electrical cables, tubing, hose lines.
Locking fingers snap into holes with fingertip pressure & withstand a push back force of 35 pounds.
.390″ ID x .57″ OD Nylon Snap Bushing mounts in 0.5″ hole of 1/8″ max thickness panels.
Sold in packs of 10.