Name: Gradient color sample vial Capacity: 20ml/30ml Material: Premium glass Shape: Cylindrical Cap: Matched colorful unique screw cap Color: Gradient color Surface/Texture: Embossing,electroplating, decorating firing,frosting, S/S, H/S, marble coating, metalizing, flocking,labeling,color coating, etc. OEM:Sample processing, brand customization Pack: Carton with partition board, export pallet MOQ:  1,000pcs up Samples: Free, need you to bear the express cost or proofing cost if necessary Certificate: ISO GB/T 24694 …