The sonor orff smart alto metallophone is ideal for schools music educators and group workshops needing robust portable and sonically rich instruments. Its specially alloyed aluminium sound bars cover a 16 note c major scale from c1 to a2 with additional chromatic notes f1 bb1 f2 offering clear balanced tones tuned precisely to a440hz. Built into a compact and lightweight body this metallophone is designed for easy transport and storage.the instrument includes smart features such as shatterproof pins for durability foldable feet for space saving use and a built in storage compartment to keep bars and mallets safe and tidy. Plus its stackable design means multiple units can be stored with minimal fuss. Constructed with fsc certified plywood and plastic its both practical and environmentally mindful.