VEVOR Pool Cover Water Bags, 6 Packs 4 Ft, Single 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, 6 Packs 4 Ft, Single Chamber Pool Cover Water Tubes, 0.4mm Thick PVC Bags Weights with Leakproof Screw Cap, for Inground Swimming-Pool Covers Winter Closing, BlueLeak-Resistant Pool Cover Water BagsPremium Thick PVCUser-Friendly DetailsProper Cap Installation TipAll-Weather PerformanceEfficient Single-Chamber DesignThickness: 0.02 inch / 0.40 mm,Welding Process: Edge High-Frequency Welding, 0.59 inch / 1.5 cm width,Item Model Number: SSPCWB-01,Set Includes: 6-Piece Set,Product Dimensions: 47.63 x 7.87 inch/1210 x 220 mm,Chamber: Single Chamber,Net Weight: 3.53 lbs / 1.60 kg