The Masontops Complete Fermentation Kit for wide-mouth Mason jars includes 4x Pickle Pipe silicone fermentation airlocks, 4x Pickle Pebble glass fermentation weights, 1x Pickle Packer Acacia wood vegetable tamper PLUS a printed Fermentation Guide & Recipe Book. The Kit includes enough tools to make up to four batches of fermented vegetables at once and is perfect for beginner and expert fermenters. Preserve vegetables and create probiotic-rich fermented foods. | Masontops Complete Fermentation Kit | Size Wide-Mouth