ROUND Plastic PLUGS Multi Gauge Review

NOTE: THIS PLUG DOES NOT FIT 4" HOLE INSIDE OPENING. "It Fits Inside hole ID opening from 3.56" to 3.74" ONLY, and Outside TOP CAP dimension of 4". . Check your tube ID to be within the range before ordering". LDPE hard plastic impact resistant. Slightly domed construction. Flexible ribs. For ID up to 3.74 "diameter. Please check the OD and ID of the pipe you are installing. These are only good up to 3.74" ID. The size 4" reflects the out side diameter of the top cap. This plug top cap is slightly domed as pictured. This Plug is slightly domed and rugged construction for long life and indent resistence. (Pack of 2) 4" OD ROUND Plastic CAP PLUGS | For Hole diameter GRIP RANGE 3.56" to 3.74") Heavy Duty - Impact Resistant TOUGH Design || Fence Post Slide Inserts | Fitness Eqpt End Caps | by SBD.