Waterman Soprano Ukulele Fluorescent Green. The Kala Waterman Soprano Ukulele is inspired by the 1950’s Maccaferri ukulele and created by Kala with a focus on the outdoor lifestyle. The Waterman is a high-quality, affordable ukulele that sounds great and stays in tune. It's the portable, take-anywhere ukulele. Take it to the beach, the river, the lake, the mountains—take The Waterman anywhere. It’s your uke for the road. The Kala Waterman Soprano Ukulele is a durable, water-resistant instrument. Excellent for school programs, it's easy to keep clean. It features high quality nickel plated open-gear tuners and Aquila Super Nylgut strings. Ready to go with you it comes with its own tote carrying bag.