Dropper replacement caps: provide enough quantity for you to use, easily meet your different needs,pipette dropper caps Droppers head caps:these silicone droppers head caps are small in size and light in weight, convenient to store and use,dropper bulb tips Pipette dropper rubber bulb:these dropper head caps can easily suck liquid and effortless fer it into another container as you need,dropper bulb caps Dropper rubber bulb: for glass droppers, graduated tube and fer pipette, they are teaching equipment and chemical equipment,pipette dropper bulb tips Pipette head caps:crafted from silicone material, comfortable to touch and to use, ,dropper caps Size: 3.70X1.20X1.20cm/1.45X0.47X0.47 inch Colour:red Material:Silicone Package Contents: 100 x Dropper Rubber Caps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!