Check the listing for details. The '603' 3D Printer Filament Dry Box. Condition: New. Listed at 50.00 USD. - Designed for 1Kg or smaller spools of filament. - Patent pending super low friction bearingless design.- 3D printed parts made of PETG which resists moisture (competitors use PLA which absorbs water)- Temp/Humidity gage included (some competitors charge extra)- Say goodbye to fuzzy prints and shattered reels of filament- This unique Dry Box can store filament indefinitely on the shelf and up to 4 weeks with no maintenance in use on a printer.- Horizontal Spool orientation. This puts ½ the twist in the Filament while dispensing compared to stock set up on my (and other’s) printer.- Round container design saves space.- 45-degree low profile tubing Feed Through Fitting for a more natural unwinding of the Filament.- Feed Through Fitting seals to the tube and lets the tube pass through it into the Dry Box to help ensure trouble free unwinding.- Feed Through Fitting lets the tube get pushed easily into the Dry Box but will not let it get pulled out unless the release is pressed.- Oversized Feed Through Fitting and undersized tubing for super easy adjustment.- Brass Ferrules on both ends of the tubing for wear resistance and long life.- Spool Holder rides on a ‘zero-point contact’ bearingless Pivot for super low maintenance trouble free operation.- Unwinding action has significantly less friction than designs with ball bearings.- Can be mounted to the outside of a 3D printer in almost any orientation.- 20g of food safe color change silica gel good for up to a month of maintenance free storage of filament in ready to print condition. No need to dry it before printing.- Made for a spool with a 54mm Inside Diameter opening. You can specify a different size in the 'note to seller' field when checking out.- 30 DAY SATISFACTION GUARANTEE- LIFETIME WARRANTY **************BUT WAIT!! THERE'S MORE!!*********- For a limited time we will include a second external Temp/Humidity gage for FREEEE!!!