The sandpit was easy to set up. The banks are also stable enough for an adult. The sandbox is now 9 months in our garden and is not weathered. We have not treated him, but covering it with a solid Plane. The wooden top has become darker, but I see no traces of weathering, everything is still as strong as the first day. The sandbox is with us also sandpit fleece which is on paving slabs. At the beginning there are many creepy-crawlies were in the sandbox, but since we cover him not one more.