Whether you’re a first-timer or a veteran parent, chances are you’re trying to find ways to save a little money. Let’s face it—there are a lot of pricey items that you need to get for your baby. While there are certainly some areas in which you can save, with some products cutting corners might mean compromising safety.

Hand-me-downs and items purchased at tag sales could have been recalled or past their prime. Here are baby products that should always be purchased new:

1. Car seats

Did you know that car seats have an expiration date? Usually it’s about 6 years and after that the plastic starts breaking down. Never purchase a car seat from a tag sale, as you won’t know if it’s been involved in a crash and the integrity could be compromised. Before throwing out an old car seat, cut the straps so it can’t be used again.

2. Cribs

The sale of drop-side cribs became illegal in 2011, but that doesn’t mean well-meaning grandparents aren’t inadvertently using them in their home or handing them down as a prized heirloom to their kids. All cribs should be purchased new, as older ones could be missing screws or have loose parts.

3. Mattresses and pillows

Babies spend a great deal of time sleeping on a mattress and propped up or nursing on pillows. That means a lot of sweat, saliva and diaper leakage. Even once they are cleaned, bacteria can easily transferred to another baby. Additionally, if they are stored improperly dust and mold can develop on the mattresses and pillows leading to the growth of mildew and fungus.

Before using any hand-me-down or item purchased form a tag sale check to see if it’s been recalled.