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How do I pick the right size?

There are many different factors that could affect sizing, but the vast majority of our customers are able to choose the correct sizing, by following these directions. If you can put your finger in between the window and the window seal a large should work, if you can barely put your finger in between the window and the window seal a medium should work. If you can’t get your finger in between the window and the seal, than a small will work. With this as a guide, you should be able to determine the correct size. If for some reason the size you order does not work properly, you will absolutely be able to exchange for a different size.

What is your exchange/return policy?

Our goal is for our customers to be 100% satisfied with the ShimJim. Should you wish to exchange or return the ShimJim, please email us at and we will provide you with exchange/return instructions.

What shipping options do you offer?

Currently, all of our shipping options are through USPS. We offer free First Class shipping (typically 5-8 days), Priority Mail for $6.95, and Priority Mail Express for $29.95 (typically 1-2 days or overnight). Scheduled delivery date and time depends on origin, destination, and Post Office acceptance time.

Is your website the most inexpensive site to purchase your product?

Yes, we currently sell on a variety of platforms (Amazon, Ebay, Facebook), but our website is the cheapest place to purchase.

Can I purchase the ShimJim in a store?

Currently, you can only purchase the ShimJim online. We are actively working to get the ShimJim in stores!

Do you sell outside of the US?

No, not at this time.