Please note that this product is "made to order". Therefore an order cannot be canceled or returned even if delivery times are longer! Converted from Type I borosilicate glass tubing 40% larger opening improves sample accessibility while reducing autosampler needle damage Available with or without writing patch Designed for use with 11 mm aluminum seals Purchase vials and caps separately or together in convenience packs Packaged in shrink-wrapped trays of 100 for convenience and cleanlinessMeer tonenMinder tonen