Base made from resin compatible with overhanging parasols the heavy resin quarter bases act as a weight that secures firmly in place the product is durable and lightweight. Each quarter is heavily weighted, so they don't need filling with sand and water like other bases do, making them a convenient option. Compatible with overhanging parasols, each quarter weighs 20 kg, so they will securely support your parasol. Worry no more about windy weather taking your parasol for a ride! The quarter is just 1 piece in a set of 4. You will need to order 4 quarters to make up a complete base. This allows you to buy as many as you require.