Vial set Spex silicon nitride for wet or dry grinding/mixing, vial size 2 1/2 inch (6.35cm) diameter x 2 11/16 inch (6.8cm) long, includes solid silicon nitride vial and slip-on cap, two 1/2 inch (12.7mm) silicon nitride balls, and seven corprene gaskets, volume 45 mL, grinding load 2–8mL, mixing load approximately 20mL