Roller Teaching Math
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How to use:
1. Open the oil cap.
2. The oil nozzle is aligned with the oil hole and 5.6 drops can be dropped.
3. Add the oil cap and cover it.
📦 Insured Worldwide Shipping: Each order includes real-time tracking details and insurance coverage in the unlikely event that a package gets lost or stolen in transit.
💰 Money-Back Guarantee: If your items arrive damaged or become defective within 15 days of normal usage, we will gladly issue out a replacement or refund.
✉️ 24/7 Customer Support: We have a team of live reps ready to help and answer any questions you have within a 24-hour time frame, 7 days a week.
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If you're not fully satisfied, please fill in our contact us form and we'll quickly work to correct the problem.