【3 inches (50mm) inside dimmensions Soft Cap】The black chair leg floor protector widely used in chair legs, stool legs, table legs, folding chair legs and other round furniture feet. Also can be used in round tubes, walking canes etc. Fit for our 2" acrylic tubes to provide end closure. Use caulking for tighter seal
【Durable soft plastic material】The chair leg caps are made of soft pvc rubberish material, has some flexibility
【Product Dimension】Overall outside dimmensions: 3.2 inches diameter x 1.33 inches height. Inside dimmensions: 3 inches diameter. Thickness 0.078 inches
【Recommend 2 and 4 inches caps】https://www.fixturedisplays.com/index.php?_route_=Acrylic_Tube15139-CAP&search=15139、https://www.fixturedisplays.com/index.php?route=product/search&search=15147
【Assembly Video】Video Instructions link: https://youtu.be/NNq6avi_fb4. You can also search "15140 CAP 3 inch diameter id tube cover cap for acrylic tubes fixturedisplays" on youtube to locate the video. You can also download video by following this link: http://www.fixturedisplays.com/video/15140.AVI