unifiber sdm hd aluminium Size:4 - 30 cm It has been specially designed

It has been specially designed to protect the rails of your board from scratches

features Only available as an asymmetric fin

Torx screws are significantly more expensive to manufacture

Knee Flex Notches at the back

SLM is similar to SL

unifiber sdm hd aluminium Size:4 - 30 cm It has been specially designedWe present the Unifiber SDM HD Aluminum Extension. The mid range model from Unifiber is suitable for all windsurfers who use newer equipment but still want to keep an eye on their budget. For $79. 95, you get a rock solid Extension that clearly stands out for its durability. If you're not sure whether you need a high performance Extension, this Extension offers a very good compromise between price and performance.