●Wooden slide stand holder with 10pcs female 14mm Quartz Glass adaptor . ●it can hold 10pcs glass tubes with 14mm stem . rember all 14MM , 14MM as the photo shows . ●material: hard and heavy wooden base keep everything stand on desk stable and safe, and quartz glass holder can bear high temperature and keep your glass tubes tight in the holder . ●the holder will stand on the table stably , keep all your glass tubes standing in order .Put the holder on the desk , your glass tube will be safe and tidy,NO breakage . ●please check your glass tubes size before place order ,please check your glass tube is male or female , male glass tube suits my female connector , female glass tube suits my male connector .this holder is with 10 Female glass connectors , ONLY suits for bowls with Male stem , and Rember 14MM stem.