"Glide, inside round Fits 1-1/4 inch OD tubing"
"Glide, block ""S"" type Fits 1 inch OD tubing"
"Glide, block ""S"" type Fits 3/4 inch OD tubing"
"Glide, inside rectangular Fits 1 x 3 inch OD tubing"
"Glide, inside rectangular Fits 1 x 2 inch OD tubing"