Hello Renata Rehfeld Martins de Oliveira,
I would contact IDEA who will be happy to help you:
IDEA Health & Fitness Association
10455 Pacific Center Court
San Diego, CA 92121
Phone: (858) 535-8979, ext. 7
Toll-free: (800) 999-4332, ext. 7
Fax: (858) 535-8234
Take care,
Natalie aka NAPS 2 B Fit.