Promotional value expires 90 days after purchase. Amount paid never expires. New customers only. Reservation required. Only one Groupon voucher of any kind may be used per account. Classes must be used by the same person. Must activate by expiration date on voucher. Four class packages must be used in full within 30 days of activation date; seven class packages must be used within 45 days of activation date. Once redeemed, all classes must be redeemed at that same location; voucher will not be valid at other locations. Kids ages 13-17 must be accompanied by parent or guardian to first class. Must be 18 or older to attend classes at the Pasadena, CA location. Limit 1 per person, may buy 2 additional as gift(s). Limit 1 per visit. Valid only for option purchased. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.