Plastic
From Amazon
vidaXL Balcony Planters in Rustic Wicker with PE Lining - Durable and Charmingly Designed Outdoor Railing Planters for Balcony, Patio, or Garden in Brown
Liam's Bargains
vidaXL Balcony Planter 2 pcs Wicker with PE Lining 40 cm - Brown