The Spectrum S-Flex 90A is a filament that is ideal for making flexible 3D prints. It has good adhesion to the build plate and between layers. The excellent adhesion between layers makes this filament resistant to the leakage of liquids. In addition, parts made of this material can be used as bumpers to absorb vibrations. Finally, S-Flex 90A is durable and resistant to UV radiation. This is a 1.75mm deep black filament on a 0.5kg spool.