Adamas-Beta 100Pcs Glass Sample Vial with Screw Cap, SPECIFICATION – 100pcs,2ml,amber MATERIAL – Made of good quality borosilicate glass,durable,with screw cap,good sealing,avoid leaking THREADED DESIGN – Threaded mouth technology is more convenient and easier to open and tighten,and the unique. Aijiren Tech™ 2mL 9mm Amber Screw Top Vial Kit,