4 Pack 1.5 Inch Square Tube End Cap Plastic Plugs, 1.5"x1.5" Square Tubing Plug, Tube End CapsTubing Post End Cap Suitable for Square Tube Square Plastic Plug, Tubing Post End Cap Square Tubing

Size Name:1.5 Inch Colour: Black Quantity: 4 pieces Applicable size?The size of the plastic plug is 1-1/2in*1-1/2in(38mm x 38mm) , only fit 1.5 inch(3.8cm) outside diamefer square tubing . Designed will fit inside hole dimensions 1.36in-1.46in ?with a wall thickness 0.020" - 0.060". NOTE: It will not fit a 1.5"(3.8cm) opening inside diameter square tubing These tube plugs are perfect for fitness equipment, trailer frame ends, slide chairs,fence posts, gate rail post covers, pole pipe rod caps, metal rackfittings, wrought iron steel finishing plugs, or any square opening. Instructions for use: Hold the plastic plug. Align the installationMetal tubeand push Successful installation. 1. Please carefully confirm the size of the installation parts before purchasing. 2. Please carefully measure the inner diameter and outer diameter of the installation pipe. 3. Measure the size of the pipe before purchase to determine the matching to ensure that it meets the requirements.