This is an usual lot of art glass. Most likely they are pieces from stained glass. These pieces were found along the coasts of the Pacific Ocean.

These were likely tossed into the ocean, broke into small pieces and tumbled smooth after many years in the sea.

The largest piece measures 2 cm long. They are craft quality, rougher, chipped pieces with irregular edges and patinas. Dime in photo for size reference.

Your sea glass will arrive with a display card which tells the short story of sea glass and the name of the ocean where the pieces were found.