Snap bushings are ideal for abrasion and cutting protection of wiring, antenna leads, tubing, cables, etc. that are routed through bulkheads, ribs and other internal aircraft structures. Converts raw-edged holes to smooth neat, insulated ones. The locking fingers “snap” into holes with fingertip pressure, and will withstand a push back force of 35 pounds. Insulates and mechanically protects electrical and telecommunications cables, tubing, hose, rope and utility lines. Made of hard nylon, black or white depending on stock. Install by drilling a hole 1/8″ larger than bushing i.d.