This is an extra 3/32 inch (2.38mm), black Butadiene Acrylonitrile (Buna-N) rubber suction cup for use with the SMD-Vac Kit, Pen-Vac Kit or Handi-Vac Kit.
The ESD-safe cup can be used on temperatures from -4° F to 248° F (-20° C to 120° C), and the soft material is safe for glass as well as electronic components. Keep out of direct sunlight to maintain pliancy.