glass vials with caps in clear for lab use supplier Sigma Injection Vials in Clear & Amber Glass - Lab UK. The injection vials are available in 2ml, 3ml, 5ml, 10ml, 20ml, 30ml, 50ml, 100ml & 200ml sizes plus more on request. We can supply both clear and amber injection vials and also the crimp caps and stoppers which are sold separately.