Vial set Spex methacrylate for wet or dry mixing of liquids and powders, vial size 2 1/4 inch (5.7cm) diameter x 2 5/8 inch (6.7cm) long, rugged construction allows grinding of soft materials without metallic contamination, heavy-gauge methacrylate body with methacrylate-lined aluminum screw-on cap, includes corprene gasket, two 8006A 1/2 inch (12.