{{ 'fb_in_app_browser_popup.desc' | translate }} {{ 'fb_in_app_browser_popup.copy_link' | translate }}

{{ 'in_app_browser_popup.desc' | translate }}

Your Shopping Cart is empty.
{{ (item.variation.media ? item.variation.media.alt_translations : item.product.cover_media.alt_translations) | translateModel }} {{ (item.variation.media ? item.variation.media.alt_translations : item.product.cover_media.alt_translations) | translateModel }}
{{ 'product.bundled_products.label' | translate }}
{{ 'product.bundle_group_products.label' | translate }}
{{ 'product.buyandget.label' | translate }}
{{ 'product.gift.label' | translate }}
{{ 'product.addon_products.label' | translate }}
{{item.product.title_translations|translateModel}}
{{ field.name_translations | translateModel }}

  • {{ childProduct.title_translations | translateModel }}

    {{ getChildVariationShorthand(childProduct.child_variation) }}

{{ 'product.set.open_variation' | translate }}

  • {{ getSelectedItemDetail(selectedChildProduct, item).childProductName }} x {{ selectedChildProduct.quantity || 1 }}

    {{ getSelectedItemDetail(selectedChildProduct, item).childVariationName }}

{{item.variation.name}}
{{item.quantity}}x HK$0 {{ item.unit_point }} Point
Remove
{{addonItem.product.cover_media.alt_translations | translateModel}}
{{ 'product.addon_products.label' | translate }}
{{addonItem.product.title_translations|translateModel}}
{{addonItem.quantity}}x {{ mainConfig.merchantData.base_currency.alternate_symbol + "0" }}
Remove
France Koa Koa DIY Make A Handcrank Doorbell #Made in France

France Koa Koa DIY Make A Handcrank Doorbell #Made in France

This DIY kit will allow you to build a beautiful doorbell for your room. While building it, you will discover gear trains and basic mechanical principles like the friction effect. You will manipulate nuts, screws, washers, etc.

HK$269.00
HK$100.00
{{shoplineProductReview.avg_score}} {{'product.product_review.stars' | translate}} | {{shoplineProductReview.total}} {{'product.product_review.reviews' | translate}}
{{amazonProductReview.avg_rating}} {{'product.product_review.stars' | translate}} | {{amazonProductReview.total_comment_count}} {{'product.product_review.reviews' | translate}}
Quantity Product set quantity
The maximum quantity per submit is 99999
This quantity is invalid, please enter a valid quantity.
Sold Out

Not enough stock.
Your item was not added to your cart.

Not enough stock.
Please adjust your quantity.

{{'products.quick_cart.out_of_number_hint'| translate}}

{{'product.preorder_limit.hint'| translate}}

Limit {{ product.max_order_quantity }} per order.

Only {{ quantityOfStock }} item(s) left.

Please message the shop owner for order details.
Description
Additional details
Shipping & Payment
Customer Reviews
How does it work?
First, detach the gears from the wooden boards, then identify all the small parts and the screws. Once assembled, you can paint it to personalize it and nail it to your bedroom door (there are 4 holes on the corners for this purpose).

What will you learn?
- The different types of gears: gear trains, rack and pinion, circular, etc.
- Ratios to calculate the speed at which gears turn
- The friction effect, the crank

What is in the kit?
You will find wooden elements: three large wooden gears, a large board and small parts to assemble. There are also screws and nuts: nuts, screws, rings, washers, wing nuts, a hair band and a bicycle bell.
There is no additional details for this product.

Delivery Options

  • SF Express
  • S.F. Express - EF Locker Pickup
  • S.F. Express - S.F. - Business Station Pickup
  • S.F. Express - Store Pickup
  • Self Pickup

Payment Options

  • Credit Card (Visa, Master, AE)
  • Apple Pay
  • AlipayHK
  • WeChat Pay
  • Octopus
  • Google Pay
  • FPS
  • Payme
{{'product.product_review.no_review' | translate}}

Related Products