does this come with mason jars?

No it does not. This is what the kit contains: 9-Piece Set Includes 4 Pickle Pipe Silicone Airlocks, 4, Pickle Pebbles PLUS+ Clear Glass Fermentation Weights, 1 Pickle Packer Vegetable Tamper, PLUS a Bonus Printed Fermentation Guide with Recipes and Tips Contains Enough Tools for 4 Simultaneous Ferments in Wide Mouth Mason Jars

Are the lids bpa free and are the weights lead free glass? thanks

Hi there - Thank you for your helpful question! Yes, all of our products are BPA and lead-free. Thank you again!

Is it okay if the water/brine overflows?

Mine does with sauerkraut sometimes but I've learned to leave more space at the top to compensate for some loss. If you lose too much brine then you need to add a little more to keep all the vegetables below the surface of the water.

Can this be used on half gallon jars? Thanks

These are designed to be used with wide mouth jars, if the gallon or half gallon jug or whatever you want to use is the same size as a wide mouth mason jar then I would say you should be able to use it. You just want to make sure the glass holes everything underneath the liquid.

Material Type Free	BPA Free
Item Package Quantity	1
Item Weight	1.59 kg
Product Care Instructions	Dishwasher Safe
Item Volume	177.44 Millilitres
Net Quantity	9 Count
Is Microwaveable	Yes
Size	small
Global Trade Identification Number	00829188000059
UPC	829188000059 683615347960
Country of Origin	USA
Item model number	CFK9W
ASIN	B01H7GI7V8

Masontops Complete Mason Jar Fermentation Kit - Glass Weights, Vegetable Pounder and Silicone Airlocks - Wide Mouth

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