Aquila 91U Red Series Thundergut Bass Ukulele Strings GDAE Tuning | eBay
Thunder RED LOW B String for Kala U-Bass
Guitar Pusher - Tagima 30KB Walnut U-Bass with pickup and Aquila thundergut strings. ₱12,450 For more specs and video demo click this link https://www.guitarpusher.com/products/tagima-u-bass-30kb-ukulele-bass-with-pickup- aquila-strings | Facebook