20mm Clear Crimp top,10ml/20ml Headspace Vials,Bevelled ,Round Bottom 100pcs/pk. C $18.27 to C $40.56. Buy It Now. +C $43.34 shipping. 27d 5h left (17/8, 22:35) From United States. Large 1000 Pc. Lot 20mm Flip Top Cap Aluminum Crimp Seal for Serum Vials Green. C $54.16.