"Product Description: â? Model Number: HM-5032 â?¡Packaging Details:100 pieces in 1 box (Min. Order) â?¢Material: 50ml clear screw top bottle, with scale (hole in the centre of balck bakelite cap/PTFE silicone septa (10-50ml headspace screw top vial with scale w/cap and septa) (39.8*83mm) is made out of borosilicate/USP 1 (to be confirmed); And having a flat bottom / having a writing label and scales â?£Matching accessories Matching vial/bottle/tube: N/A Matching cap with septa (assembled): N/A Matching cap (separated): N/A Matching septa (separated): N/A Matching insert: N/A Matching crimper and decapper: N/A â?¤Fits for N/A â?¥Optional: Customized logo For more details, please feel free to contact us. Bei Hu, from Ningbo Excellent New Material Co., Ltd."