Based on Regular Classic Refills

(1 Extension Per Natural Lash) at 10 days (reg. price $70) 

Discount offer requires refills at every 10 days or less + ONLY 25% LOSS MAX, otherwise price is subject to additional charges. THOUGH, you will NEVER lose a refill, it will just roll over to your next 10 day fill. Packages are NOT Transferable /Interchangeable