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K611 Hot Air Stirling Engine Model Alternator wiht LED Acrylic Base Plate Steam Power Experiment Physics Science Education Toys
95
Shipping to: United States |
Express delivery: 7-12 business days |
Standard delivery: 15-25 business days
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Free Gift
Shipping Policy
Return PolicyFree Gift
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side. Final sales items or free gifts are not acceptable for a return. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier.We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +447549870296
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment. Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +447549870296Specification:
Product Name:Hot Air Stirling Engine Model
Model:K611
Product Color:Gold
Major Material:Aluminum Alloy
Product Size:16*8.3*8.7cm
For Age: 14+
Instructions:
1: Turn the flywheel by hand to see if it is smooth.
2: Check if the sliding parts are clean.
3: Fill the alcohol lamp to less than two-thirds full. (Add 95% or more alcohol)
4: Light the alcohol lamp at the front end of the test tube.
Turn the flywheel after about 1 minute. The motor is rotating.
The warm-up time with the generator is slightly longer.
Precautions: Do not touch the baked test tube or the metal connected to it to avoid burns.
Note:The light shooting and the different displays can make the color of the article in the image slightly different from the real thing. The authorized measurement error is +/- 1-3cm.
Package included:
1 x K611 Hot Air Stirling Engine Model
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