2LB Fonday Premium Moisture Indicating Silica Gel Desiccant Orange to Green Rechargeable Industry Standard Bead Size 3 to 5mm

Great product, does what it says and can be recharged by microwaving.

I purchased these to put in boxes that store my 3d Filament and there great and keep my moisture levels down and very good value for money as you can recharge them which means you dont have to buy more for a while.The pictures show before and after recharging them and these ones have been done at least 5 times.I recharge them in the microwave and recommend you use the defrost or lowest setting keep stirring every few minutes and they go from and reddish purple to there normal orange colour.Certainly would buy more

I use this with sealed cereal boxes to keep 3D printing filament dry and it does a great job. Very easy to dry the desiccant itself back out to re-use it as well.

I live in an extremely damp house which is prone to mould, so I thought these would be a great idea to absorb extra moisture in boxes and drawers. And so far, it looks like they work. I only ordered these yesterday and the silica gel bags I made have already turned green overnight. If the green colour truly means the beads have absorbed moisture, then these work like a charm! Silica gel can absorb about 37% of its weight in moisture, so the 2lbs (almost 1000g) can absorb about 370ml of water.These beads can be “recharged” or dried out by putting them in the oven. Do not use a microwave as it will damage the silica gel. It needs to dry slowly. Do not heat them hotter than 150° as it will destroy the absorbing properties of the beads. I put them in my oven on a baking sheet at 100° for 40 minutes and left them to cool inside the oven before poring them back into the container. They’ve returned back to orange and are ready to be reused! Apparently they can be reused over 500 times, so these beads are a very worthwhile purchase. Just note that silica gel can let moisture back into the air. Don’t leave the green beads to sit out as they will start to ‘leak’. It’s important to dry them out regularly.My only minor complaints are that the opening in the container is quite large. I wish it had a narrower opening so the beads could be poured without making a mess. I also noticed that many of the beads are broken and not whole pieces, but I’m sure they absorb moisture just the same. But overall, I’m very happy with these and will probably buy more!

Easy to use and great moisture control for 3D printing filament

It can be reused after being dried in the oven. Good quality.

Works fine! I used air fryer to reactivate them and works fast and good.

🎯 PerformanceI picked this up to use with my AMS 2 Pro, and it’s been excellent. Humidity inside the AMS went from E (high) down to B (low) in just a few hours, which is exactly what I was hoping for. Really pleased with how well it absorbs and maintains dryness.🖨️ Setup & UseI printed AMS pods to hold the desiccant and popped them inside the AMS unit - works perfectly. I’ve uploaded pictures to show the product itself, the pods I printed, and also a screenshot from Bambu Studio showing the humidity drop for proof.🔄 Recharge & IndicatorsOne thing I like is that it’s not single-use - the desiccant can be “recharged” either by microwaving (7-12 minutes at 700W) or using an oven (0.5-2 hours at 90-120°C / 200-250°F). It also changes colour from orange to green when it’s absorbed moisture, which makes it really easy to see when it’s time to recharge.📦 OverallSimple, effective, and great value for keeping filament dry inside the AMS. Works quickly, reusable, and easy to monitor - couldn’t ask for more. Highly recommend it if you want to keep your filament in top condition.