Martin has been making soprano ukuleles since 1915, and they were fashioned after the first ukuleles that originated in Hawaii back in the 1880s. The smallest-sized ukulele we make, this soprano-sized model features a top, back, and sides that are crafted of koa, a wood native to Hawaii and a favorite of island players. The entire body includes a hand-rubbed, ultra-thin finish. The S1K Uke is a beautiful example of why Martin is still the name in superior quality ukuleles. Body Size: Soprano Ukulele Finish Top: Hand-Rubbed Construction: Applied Dovetail Neck Joint Back and Side Finish: Hand Rubbed Bracing Pattern: Soprano Ukulele Scale Length: 13.614'' Brace Shape: Non-Scalloped Fingerboard Width at Nut: 1 11/32'' Top Material: Koa Neck Shape: Soprano Ukulele Back Material: Koa Neck Taper: Standard Taper Side Material: Koa Electronics: Not Available Electronics Options: None Top Top Color: None Bridge Style: Soprano Ukelele Binding: None Bridge String Spacing: 1 41/64'' Top Inlay Material: None Bridge Material: Morado Top Detail: None Bridge Pin Material: None Pickguard: None Bridge Pin Dots: None Pickguard Inlay: None Saddle: Compensated White Tusq Rosette: Multi-Stripe Saddle Radius: Flat Body Brace Material: Spruce Back and Sides Color: None Brace Size: 1/4" Back Detail: None Back Purfling/Strip: None Back Inlay Material: None Heelcap: None Side Detail: None Endpiece: None Side Inlay Material: None Endpiece Inlay: None Neck Neck Material: Select Hardwood Fingerboard Material: Sipo Finish Neck: Hand-Rubbed Fingerboard Width at 12th Fret: 1 13/16'' Neck Color: None Fingerboard Inlay Style: Dots Number of Frets Total: 17 Fingerboard Inlay Material: White Acrylic Neck Joins Body At: 12th Fret Fingerboard Binding Material: None Side Dots: White Headstock Headstock Shape: Solid Soprano Tuning Machines: Solid Soprano Headplate Material: Koa Knob: Small Headplate Logo Style: Small Gold Script Nut Material: White Tusq Headplate Binding Material: None Misc Case: Soft Gig Bag