Looking for a natural way to re-hydrate your flower before pressing? Introducing The Press Club's 100% terra-cotta hydro stones. Simply soak these earth-based natural squares in water, pat them dry and throw them into a container with your dry flower. Designed to fit into all standard wide-mouth Ball jar. PRO-TIP: use a digital hydrometer to track your perfect RH% (we recommend between 62-65% RH) and burp your jars as necessary 4-Pack, Dimensions: 2.5" x 2.5" x 0.25" (Length x Width x Height) Made From 100% Natural Terra-Cotta Stone | 100% Food-Grade Handmade In The USA ALL ROSIN BAG SIZES & ROSIN PRESSING ACCESSORIES PLATES: 3" x 5", 4" x 7", Press Light, Insulators ROSIN BAGS: 1.25" x 4", 1.5" x 4", 1.75" x 4", 2" x 4", 2.5” x 4.5”, 1.5" x 9", 2” x 9”, 2.5" x 9", 3” x 6”, 3" x 9", 3.5" x 9", 4" x 7", 4" x 12", 5" x 5", 2" Filter Tubes LIMITED EDITION: Round Rosin Bags, Tube Sock Rosin Bags, THCA Mechanical Separate Sheets FUNNELS: 1.25" Funnel, 1.5" Funnel, 2" Funnel, 2.5" Funnel (Coming Soon) DRY SIFT SCREENS: 24" x 12" x 1.25" (Individual / Sets Available) WASH WORK BAGS: 6" Cube, 12" Cube BUBBLE WASH BAGS: 5 Gallon Premium, 5 Gallon All-Mesh, 10 Gallon, 20 Gallon, 32 Gallon, 44 Gallon, 65 Gallon WASHING ACCESSORIES: XL Drying Screens, 0.5mm Collection Card, 5 Gallon Neoprene Insulator Wrap PARCHMENT PAPER: 5" x 5", 6" x 12", 8" x 16", 10" x 10", Roll PARCHMENT ALTERNATIVE: 5 x 5 PTFE Sheets, PTFE Roll PRE-PRESS MOLDS: Pollen Press, 2" x 4", 2" x 9", 2.5" x 2.5", 2.5" x 4.5", 2.5" x 9", 3" x 5", 3" x 9", 4" x 4", 4" x 7" COLLECT: Large Rosin Stamp, 6" Cold Plate, Glass Dab Tool Kit STORAGE: 5 x 5 FEP Sheets, Self Vacuum Cure Jars, Hydro Stones ACCESSORIES: Magnets, Resin Magnets, Trash Bin Organizer, ISO Station, Terp Pearls, Stickers, T-Shirt