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OLYCRAFT Plastic Bottle Caps Review: Practical spares for bottles and DIY

OLYCRAFT 50Pcs Plastic Bottle Caps Black Screw-On Caps 29.5mm Inner Diameter Bottle Jug Storage Cap Lids Black Plastic Tamper Seal Lids Replacement Caps Twist Cap for Juice Bottles Dispenser Caps
4.8
[Generous Pack Size]  50 black bottle caps included, ideal for replacements, events, and crafting.
[Precise Dimensions]  32mm diameter, 16.5mm thick, 29.5mm inner diameter for accurate fit.
[Durable Construction]  High-quality plastic resists breakage for long-lasting use.
[Tamper-Evident Seal]  Tamper-evident design prevents unauthorized drinking, spills, and leaks.
[Reusable & Eco-Friendly]  Easy to clean and reuse, ideal for DIY crafts and eco-friendly savings.
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Kitchen replacement caps that help keep opened bottles sealed and reduce spills, designed for everyday use. Households and crafters gain reassurance from tamper-evident, reusable closures. Are 50 spare caps the right fit for your bottles, and will they cover regular replacements for weeks or months? OLYCRAFT Plastic Bottle Caps

⚡ At a Glance
  • Seal Quality: Tamper-seal design prevents unauthorised opening and helps stop spills and leaks
  • Best for: Home kitchens, small beverage producers and DIY crafters needing spare closures
  • Not ideal for: Bottles with non-standard necks or specialised dispensing mechanisms

Black screw-on caps measure about 32mm diameter with a 29.5mm inner diameter and 16.5mm thickness. Pack contains 50 high-quality plastic tamper-seal lids that can be cleaned and reused for crafts or storage.


Secure, tamper-evident closure – with tamper seal lid design

Tamper-seal lids include a screw-on construction that shows evidence of opening and creates a firm mechanical closure. Inner diameter sizing helps the cap engage threads and compress the seal to reduce movement.

Visible tamper evidence helps spot opened bottles while a tight screw fit reduces leaks, useful for shared fridges and homemade drinks.

Durable and reusable – with high-quality plastic construction

Manufactured from sturdy plastic that resists cracking under regular use and gentle handling. The thicker profile, about 16.5mm, adds rigidity compared with thinner caps.

Tough construction withstands everyday knocks and cleaning, making a single cap suitable for repeated use and upcycling into craft projects.

Fits common bottle necks – with 29.5mm inner diameter

Inner diameter of 29.5mm is specified to match many juice and milk bottle necks, while an approximate 32mm outer diameter gives a snug external fit. Description advises checking measurements before purchase.

Reliable fit for most beverage bottles that match the 29.5mm specification, ideal for replacing lost lids or stocking up for events.

✨ The 4 Key Reasons for OLYCRAFT Plastic Bottle Caps
  1. 50-cap pack – Ensures frequent replacements without repeated ordering
  2. Exact inner diameter – Matches many juice and milk bottles for straightforward swaps
  3. Easy to clean – Reusable after washing, suitable for food-safe reuse
  4. Black finish – Uniform look for homemade drinks and labelled storage
📋 Technical Details at a Glance
  • Category: Kitchen replacement caps
  • Brand: OLYCRAFT
  • Package Quantity: 50 caps
  • Material: High-quality plastic
  • Outer Diameter: Approximately 32mm
❓ Frequently Asked Questions

Q: What bottles will these caps fit?

A: Caps have an inner diameter of 29.5mm and are intended to fit most juice, milk and other beverage bottles; buyers should check bottle neck measurements before purchasing.

Q: Are the caps reusable?

A: Caps are easy to clean and can be reused after washing, making them suitable for both storage and craft projects.

Q: Do the caps show if a bottle has been opened?

A: Tamper-seal design helps indicate unauthorised opening and reduces the chance of spills and leaks.

🏆 Our Verdict

Suitable for households, small-scale beverage makers and crafters who need a bulk supply of replacement caps. The large 50-pack of sturdy, tamper-seal screw-on lids with a common 29.5mm inner diameter is the main selling point. Generous quantity and reusability make these caps a practical long-term solution for routine bottle use.