Garden Parasol Base – 14L / 18L / 20L Umbrella Stand Plastic Outdoor Patio. Square with Rounded Corners 18L (27 × 46 × 46 cm). Sizes: 14L / 18L / 20L Options. Keep your parasol secure and stable with thisdurable garden umbrella base, designed for outdoor use in patios, gardens, balconies, and terraces.