These wheels are ideal equipment to attach to the planter. With them, you can place the planter anywhere so that create home gardening freely. Durable material: These wheels are made of durable iron and are built to last. Convenient movement: These wheels can be easily attached to your garden planter which brings convenient movement. Brake-out mechanism: 2 of these wheels are designed with brakes, making the flower box stand on the ground more stable. - Berkfield Home Wheels for Planter 4 pcs Black 8x3.5x8 cm Iron