"Globe, swivel glide Fits 1-1/4 inch ID tubing"
"Globe, swivel glide Fits 7/8 inch ID tubing"
"Glide, threaded levelling 1-5/8 base"
1-1/2 OD 3/8-18 Plastic Round Threaded Insert
"Glide, round, swivel base 5/8 inch OD tubing"