la verdad es que son dos:
http://www.fancymusic.com/fotos/EDGE.jpg
el new edge tiene algunas de las siguientes caracteristicas
1. Arm snaps in&out arm. Same as Edge tremolo
2. Easy string installation by SLIDING HOLDER BLOCK
3. SOUND-METAL chip, inserted into saddles, for longer life of saddle.
4. New locking system ? No need to cut ball-end of strings
http://www.fancymusic.com/fotos/ZeroRocker.jpg
I dont like speak english, so you learn to read spanich, i don`t have a problem to read english.
