Check the listing for details. PHD Ukulele Strings BARITONE HIGH D Daniel Ho Jason Arimoto. Condition: New. Listed at 12.00 USD. " PHD " Premium High Density Ukulele Strings (Made In USA)by Ukulele Creations Baritone High D Set - Length 30.5" or 78 cm These clear strings utilize PVDF (polyvinylidene flouride) a polymer of higher molecular weight and density than nylon strings, which will give your uke superior volume, sustain, and playability. Sientifically optimized by Jason Arimoto PhD. Endorsed by 6 times Grammy Award winning ukulele artist and producer Daniel Ho. Please check other listings for Soprano / Concert High GSoprano Concert Low GTenor High GTenor Low GTenor 6 StringTenor 8 StringBaritone High DBaritone Low DBaritone GCEA High GBariton GCEA Low G Shipping : USPS - First Class MailShip overseas.Return & Refund Policy:If the item received is not as described we will gladly issue a refund for the item and shipping.Returns for other reasons must be approved and do not include shipping either way (to or from)It is your responsibility as the buyer to re-package, insure and cover return shipping.We do refund return shipping costs on a conditional basis.The above does not apply to items described as "AS-IS"Please contact us via eBay massages before returning the item. Thank you for looking !!