19.7 in. x 19.7 in. x 1.9 in. Black Permeable Plastic Grass Pavers for Parking Lots, Driveways (4 Pieces/11 sq.ft.) Danya Collection D Ceramic Planter Blue Pla Assembly Code N Country

19.7 in. x 19.7 in. x 1.9 in. Black Permeable Plastic Grass Pavers for Parking Lots, Driveways (4 Pieces 11 sq.ft.) Danya Collection D Ceramic Planter Blue Pla Assembly Code N Country D Ceramic Planter Blue Pla Delivery Offered Y Department Number 8 DIFM Service Code N Product Type Planter Old Default Base SKU Paint Code N Warranty Code N Default Base SKU Accessory SKUs Replacement Part SKUs Sub Brand Contour Brand Name Trendspot Local SKU Available Stores ALL Local SKU Store SKUs 7008878 Color blue Diameter 8 inch Drainage Holes yes Liner Included no Material ceramic Number in Package 1 pack Saucer Included yes Self Watering no Shape round Indoor or Outdoor indoor Q: What thread size do these bolts use roof top gardens seeded or sodded with grass or just laid to protect yard and prevent rutting and mud