Holiday Return/Exchange Policy: For customers who purchase between now to December 25th, we will automatically extend the return/exchange date to January 31st. No restocking fee, no question ask, hassle free return. Calibration Fluid/Liquid Use this to calibrate your Brix refractometer, Salinity refractometer, Beer refractometer, Honey refractometer, Clinical refractometer, Coolant refractometer, Alcohol refractometer, battery refractometer, or antifreeze refractometer. It works on all types of refractometers. Very simple to use! Open the daylight plate, and place 2-3 drops of this calibration fluid on the main prism. Close the plate, looking into the eyepiece and turn the calibration screw until the boundary between the upper blue field and the lower white field meet exactly on the ZERO scale. It's done! The whole calibration will only take 30 seconds. The Vial contains 3ml, it is enough for at least 30 calibrations. Satisfaction guaranteed or your full money back! Our goal is to place a profit margin of $1 ~ $3 per item and sell in volume. As such, the more you save the more we make. While the others are selling 1 item, we are selling 10 ~ 20 items due to our price reduction. Payments are accepted through Paypal. We ship through USPS First Class Mail from Oregon, west part of the country should receive in 1-3 days,middle part and east part of the country should receive in 3-6 days! International: We charge the same shipping cost to all our customers worldwide(same shipping cost worldwide). Our default shipping is United State Postal Service First Class mail, it take 5-10 business days for delivery. we also offer faster shipping EMS which take 3-6 days. Handing time: 1 business day. For payment received before 14:00PDT, it will ship in the same day. We do Combined Shipment on any multiple purchases. We are pleased to grant a20% discount on the shipping cost of purchases more than item. Please feel free to contact us for discounted shipping costs when you buy multiple items from us. MyStoreMaps improve local and international sales. We promise our best quality and the lowest price for our customers. This oil is different than other products, we don't accept return of this item. if the item has any problem, we will offer exchange or resend you a new one(no buyer have had any problem so far). We are a new seller , all our prices are really low compare to others, because we want to earn feedbacks. Please understand our feedback will be left once after we have received feedback from buyer. Please use the "Ask Seller A Question" button. Please allow up to 24 hours for a response. Usually the buyer will get response in 6 hours. Customer Satisfaction • Please contact us right away (via Messages) if you have any concerns, questions or issues about your purchase – and before you leave feedback. • If you give us the chance, we will make every effort to make it right for you! • We strive for five stars from you in feedback – and work hard to earn it. • Customer satisfaction is very important to us and our goal is to have every customer want to be a repeat customer. Track Page Views With Auctiva's FREE Counter