VEVOR Pool Cover Water Bags, 12 Packs 10 Ft, Double Chamber Pool Cover Water Tubes, 0.4mm Thick PVC Bags Weights with Leakproof Screw Cap, for Inground Swimming-Pool Covers Winter Closing, Blue

VEVOR Pool Cover Water Bags, 12 Packs 10 Ft, Double Chamber Pool Cover Water Tubes, 0.4mm Thick PVC Bags Weights with Leakproof Screw Cap, for Inground Swimming-Pool Covers Winter Closing, BlueReliable Pool Cover ProtectionHeavy-Duty PVC ConstructionThoughtful Design DetailsLeak Prevention TipAll-Weather DurabilitySturdy Dual-Chamber StructureThickness: 0.02 inch / 0.40 mm,Welding Process: Edge High-Frequency Welding, 0.59 inch / 1.5 cm width,Item Model Number: SSPCWB-09,Set Includes: 12-Piece Set,Product Dimensions: 118.11 x 11.81 inch/3000 x 300 mm,Chamber: Dual Chamber,Net Weight: 21.43 lbs / 9.72 kg