5-Pack Rubber Pipette Bulb Dropper Caps – 3 to 20ml Fit
5-Pack Rubber Pipette Bulb Dropper Caps – 3 to 20ml Fit
5-Pack Soft Blue Rubber Pipette Bulb Dropper Caps
Upgrade your lab, classroom, or DIY workspace with these versatile soft rubber pipette bulbs. Designed to fit a wide range of graduated tubes, transfer pipettes, and droppers, these pear-shaped bulb caps make precise liquid transfer effortless. Compatible with 3ml, 5ml, 10ml, 15ml, and 20ml pipettes, they're an essential addition to any science kit, school lab, or handmade soap station.
Key Features
- High-Quality Rubber: Made from non-toxic, odorless rubber for safe handling in lab and DIY environments.
- Perfect Fit: Hole inner diameter: 6mm (0.23"); outer max diameter: 12mm (0.47") — fits most standard pipettes and droppers securely.
- Flexible & Easy to Use: Soft, squeezable design allows effortless one-handed liquid control and precise dispensing.
- Universal Compatibility: Suitable for graduated tubes, glass droppers, transfer pipettes, and pipets across a wide size range (3–20ml).
- Wide Applications: Ideal for chemical experiments, school science projects, handmade soap DIY, essential oil blending, and general lab use.
- Color: Blue — easy to identify and sort in a busy lab or craft space.
Specifications
- Material: Rubber (non-toxic, odorless)
- Color: Blue
- Hole Inner Diameter: 6mm / 0.23"
- Outer Max Diameter: 12mm / 0.47"
- Compatible Pipette Sizes: 3ml, 5ml, 10ml, 15ml, 20ml
- Package Contents: 5 × Rubber Pipette Bulbs
- Country of Origin: Made in China
Great For
- School and university laboratory experiments
- Home science and chemistry kits
- Handmade soap and candle making
- Essential oil measuring and blending
- Art and craft liquid dispensing projects
Looking for more craft and lab supplies? Check out these related products from our store:
- Pottery Clay Sculpting Tools Set
- 10-Piece Complete Gardening Tool Kit
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Note: Manual measurements may have a ±2–3% variance. Slight color differences may occur due to lighting and screen settings.
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: What pipette sizes are these rubber bulb caps compatible with?
A: These rubber pipette bulbs are designed to be compatible with a wide range of pipette sizes including 3ml, 5ml, 10ml, 15ml, and 20ml graduated tubes, transfer pipettes, and glass droppers. The inner hole diameter of 6mm ensures a snug, secure fit on most standard pipette tips.
Q: Are these rubber pipette bulbs safe for chemical experiments and DIY soap making?
A: Yes! These bulbs are made from non-toxic, odorless rubber, making them safe for use in school laboratories, chemical experiments, handmade soap making, essential oil dispensing, and general craft projects. Always ensure compatibility with specific chemicals before use in advanced lab settings.
Q: How many pipette rubber bulbs come in a pack?
A: Each package includes 5 soft blue rubber pipette bulbs, giving you plenty of spares for your lab bench, classroom kit, or DIY workspace.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.