Listings show caster cups that fit legs described as 0.8–1.6 inches and 1.4–2.2 inches, with corresponding product dimensions provided for those ranges.
Listings name rubber and latex rubber for tips and pads. Some furniture-cap entries also list "Rubberwood (Frame)", indicating the frame material for that product rather than the tip material.
Listings show tips compatible with shafts described as 1/2", 3/4" (listed as ¾ inch), and 1"—covering small and quad canes as well as many walkers and commodes.
Package quantities vary; listings include packages of 2, 4, 8, and 10 pieces, so counts range from 2 up to 10 per package.
Dimensions vary by listing; one entry gives the pads as 0.98 inches (L) × 4.62 inches (W) × 0.25 inches (thick), while another lists each pad as 4-1/4 × 6 inches.