Planter Ball Groove indoor The Nature Groove collection is, as the name suggests, inspired by grooves.Especially on the vertical grooves in rocks and mountains that have formed over the years.A collection inspired by great changes in nature.A playful and cool collection within our indoor nature line.The Nature Groove collection is handmade, making each pot unique. This product has the following product features: 3 year warranty Indoor Lightweight The indoor flower pots do not have a drainage hole, but the pot may not be 100% waterproof.