DescriptionAre you looking for professional, yet affordable test tube caps? Are you in search of sturdy, trustworthy tool that can do multiple work at once? If yes, look no further! Our professional test tube caps must meet your needs. It is one of the best choices for you.Features- Color: Silver. - Material: Stainless steel. - Size: 4.00X2.00X2.00cm/1.57X0.79X0.79inch. - Made of premium stainless steel material, exquisite craftsmanship makes them not easy to bend or break. - This test tube caps is very easy to use, simple to install, giving you huge convenience. - Compact in size, light in weight, easy to use, simple for storage, you can use it with confidence. - The surface is polished so that it won't hurt your hands, it's very safe and secure to use. - It has simple design, but very practical in use, giving you good and excellent using experience.