We are Gymboss. We are the manufacturers of the Gymboss Interval Timers, so you can order with confidence. Gymboss has an excellent reputation of superior customer service. Please feel free to contact us with any questions, comments, or concerns.
Tax Policy
Michigan state residents are subject to sales tax.
Sorry this information is currently unavailable.
Please contact us at 1(810)329-1144 or via email before returning your order.

Purchases within the last 30 days: Please provide order ID number and the reason for return. We will either fully refund, or send out a replacement, whichever the customer chooses. Purchases between 30 days up to 1 year, or non-verified orders must return the timer to us with your return address and any order information. Once it is established that the timer is defective, a replacement will be returned.
Tel: From the USA:877-GYM-BOSS (877-496-2677) Outside the USA: (810)329-1144
Hours: Monday – Friday 9am – 4:30pm EST

Mailing Address:
PO Box 303
St. Clair, MI 48079