Essentials SDM Alu. Mast Extension Cross Pulley (U-pin) 30
Simple Rigging. Solid Performance.
Built for Easy Days on the Water
The Essentials SDM Aluminium Extension is the ideal choice for recreational windsurfers who want reliable gear that works – every time. Whether you’re hitting the water for a weekend session or setting up school rigs, this extension delivers smooth, consistent performance without the fuss
Smarter Rigging with Less Effort
Thanks to its clever 6:1 cross pulley system, downhauling is easier and quicker – even with larger sails. The dual-pulley setup multiplies your pulling power, reducing strain and helping you rig to the perfect tension without breaking a sweat.
Reliable Strength Where It Counts
- 2mm wall thickness aluminium for a strong yet manageable weight
- Cross pulley design ensures smooth, efficient rope travel
- Available in 30cm (0.619kg) and 45cm (0.718kg) to suit your setup
- Every detail is tuned for practicality and reliability, so you can rig up with confidence and enjoy your session.
Why Choose the Essentials SDM Aluminium Extension?
- Easy rigging with 6:1 cross pulley advantage
- Sturdy and dependable construction for long-term use
- Ideal for schools, rentals, and recreational sailors
- Lightweight and strong for all-around performance
- Compatible with standard U-Pin base systems
The Everyday Rigging Hero
The Essentials SDM Aluminium Extension takes the hassle out of rigging and gives you more time on the water. Simple, strong, and smart – just what you need for stress-free sailing.
We build gear to last — and we back it up.
- Year 1 — Unconditional: Full coverage, no questions asked. Any issue, we make it right.
- Year 2 — Conditional: Continued coverage against manufacturing defects.
Hold onto your proof of purchase. If you need us, we're here.
For warranty claims on products purchased from a retailer, please contact the store where you bought the product. They will coordinate with us to resolve any issues under warranty. Find a dealer(opens in a new tab)
Taxes & import duties
Local duties and taxes are not collected at checkout. They are settled with the carrier or customs on delivery. See our shipping policy.
30-day returns
Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
Return Fees:
- A 5% restocking fee applies to all returns
- Original shipping costs are non-refundable
- Return shipping costs are the customer's responsibility
To be eligible for a return, your item must be in the same condition as when you received it: unworn or unused, with tags, and in its original packaging. You'll also need the receipt or proof of purchase.
To start a return, contact us at support@unifiber.net.
Returns should be sent to:
UnifiberPhantom 14
5126 RJ Gilze
Netherlands
If your return is accepted, we'll send you instructions on how and where to send your package.
Important: Items sent back without first requesting a return will not be accepted.
Important for International Returns
If you are located outside the European Union, please be aware that:
- Return shipping costs to the Netherlands can be significant (often similar to original shipping rates)
- Any customs duties, taxes, or import fees incurred during the return process are your responsibility
We ship from the Netherlands. International customers should factor in potential return costs when ordering, as these can be substantial for destinations such as Australia, North America, Asia, and the Middle East.
When We Cover Return Shipping
Unifiber will cover return shipping costs and waive the restocking fee only in the following cases:
- You received a defective or damaged item
- You received the wrong item (different from what you ordered)
- The product does not match the description on our website
In these cases, contact us at support@unifiber.net with photos and a description of the issue. We will arrange and cover the return shipping.
Damages and Issues
Please inspect your order upon delivery and contact us immediately if the item is defective, damaged, or if you received the wrong item. We'll evaluate the issue and make it right.
Exceptions / Non-returnable Items
Certain types of items cannot be returned:
- Custom products (special orders or personalized items)
- Sale items or gift cards
Exchanges
The fastest way to get what you want is to return the item you have. Once the return is accepted, you can place a new order for the replacement item.
European Union 14-Day Cooling-Off Period
If your order was shipped within the European Union, you have the right to cancel or return your order within 14 days, for any reason and without justification.
Please note: A 5% restocking fee and return shipping costs apply. Original shipping costs are non-refundable.
To qualify, your item must still be:
- in the same condition you received it
- unworn or unused
- with tags
- in the original packaging
You'll also need the receipt or proof of purchase.
Refunds
We will notify you once we've received and inspected your return and let you know if the refund has been approved.
If approved, you'll be automatically refunded to your original payment method within 10 business days.
- Please note: A 5% restocking fee will be deducted from your refund. Original shipping fees and return shipping costs are non-refundable.
It can take some time for your bank or credit card company to process and post the refund.
If more than 15 business days have passed since we approved your return and you haven't received your refund, please contact us at support@unifiber.net.
Estimate shipping
Approximate estimate based on the selected product price and quantity.
The exact shipping rate appears at checkout.
You may also like
