Sketch [Quantity PCS STEP == 4PCSs Twist the cap off. STEP 2 TORE — JS weight. cs Warning: Only fill with water when used in warm climates. or Do not fill with water if exposed to freezing temperatures. Formation and expansion of ice may crack the base. STEP 3 Place the water or sand filled base snug into a corner of the umbrella stand as shown in the diagram. Note: It is recommended to use 4 plastic bases to properly weigh the umbrella base to the ground.