ABS plastic; Ear plugs made of PU foam; Square PP plastic pocket-sized case with one set of reusable ear plugs; Ear plugs made of PU foam ; Ear plugs measure approx 1l x .05dia each ; Helps reduce noise of up to 33 db ; NOTE: This is a novelty promotional item and should not be used in place of certified sound reduction devices or personal protective equipment where required; Product Size: 1.5 w x 1.5 h x 0.75 d