Yamaha APX700II 4/4 cutaway electro-acoustic guitar - Brown sunburst Science/Earth-Space/Earth-Space The stones can be arranged

The stones can be arranged differently to vary the level of challenge along the path

using a precision PID temperature controller

Set includes: 35 pieces in 5 colors

The 304 stainless steel is an optimal grade having superior corrosion resistance when compared with the magnetic lower cost stainless steels

No restrictions down length of rack so all samples will be incubated at same temperature

Yamaha APX700II 4/4 cutaway electro-acoustic guitar - Brown sunburst Science/Earth-Space/Earth-Space The stones can be arrangedAn inspiring guitar designed for the creative enthusiast or professional player Solid spruce top with Nato back and sides in a gloss finish Nato neck with a rosewood fingerboard ART (acoustic resonance transducer) Pickup System System 64 PRE AMP 2 year Yamaha warranty