Better picture of actual item in our school garden.
Saw these in B&Q, they come in black, dark green and a kinda lime green colour. Couldn't find anything similar cheaper tbh.
raised planters are great for small spaces, balcony etc... I got mine from Ebay and have filled it with herbs for the kitchen https://www.ebay.co.uk/itm/Assembled-Raised-Wooden-Crib-Trough-Planter-Herbs-Bulbs-Decking-Garden/142761064828
I'm sure I saw these in Laythams at Potter Heigham last week. Base and Lid for £19.99 I don't live near there so can't check but worth a look if you are local. Didn't buy at teh time as on holiday and no room in teh car.