As it's a clearance item, depends on your local post codes for availability to deliver or Click n Collect.
Pyramid Bean Bag Specifications:
Suitable for ages: 3+ years
Dimensions/Size: 82cm (H) x 92cm (W) x 126cm (D)
Estimated size after filling recommended bean quantity: 76cm (H) x 84cm (W) x 84cm (D)
Material: Polyester
Capacity: 2 x 100 litres refill bags of beans required (not included)
If it needs 2 x 100L, then after a month it will need another 2-3 x 100L. Especially if you buy the beans from kmart lol.