Comes in either 3 different sizes, eighth inch, quarter inch or half inch. These riser pads are printed from TPU with flex strength and durability. These make the best replacements as they are ecofriendly, biodegradable and recyclable. Eighth inch riser pads require 14 grams of filament, quarter inch riser pads require 28 grams of filament and half inch riser pads require 46 grams of filament.