The 1 oz. Amber Glass Boston Round Bottle with Black Treatment Pump provides UV filtering properties perfect for protecting light-sensitive materials. Includes Black Treatment Pump with 3.75" Dip Tube. Dispensing Amount: 200 mcl per stroke. Dip Tube will need to be cut to fit. When cutting the dip tube, make sure to cut at a 45 degree angle. Bottles are packed in reusable reshipper cartons with internal corrugated dividers that protect from damage during storage and shipping.