Spline is the single planter with a circular shape whose aworking with vertical staves strongly connotes its design, giving rhythm to themetallic surface. A design object in perfect balance between modernity and tradition. Spline is produced without size limitation, for both outdoor and indoor installations, with or without wheels. The pivoting wheels, when present,are never visible. Spline is also available in extra-wide versions with special internal reinforcements that allow the insertion of large- and tall-stemmed plants. In the extra-wide and low version it forms a true rounded modular flowerbed. In this case it comes either with steel confondo and PVC bottom, or with polyethylene bottom and panels with water retention.