Feature●This riser is 7.9 inches (20 cm) in height for 3.3 x 3.3 ft (1 The material is lightweight aluminum and nylon, durable construction and supports the platform. Accordion storage style is compact and portable. Unique locking screws make it easy to fasten to the platform. Easy to build stages indoors●■Component: Riser ■Dimensions: 39.4 x 39.4 inches (100 x 100 cm)●■Shape: Square ■Height: 20cm ■Weight: 2.1kg●■ Size when stored: Approx. 6.0 x 20.8 x 6.0 inches (15.2 x 50.8 x 15.2 cm)●■*1: Only the same size platform can be used. ■*2: The height of the riser does not include the tableclothDescription This riser is 7.9 inches (20 cm) in height for 3.3 x 3.3 ft (1 The material is lightweight aluminum and nylon, durable construction and supports the platform. Accordion storage style is compact and portable. Unique locking screws make it easy to fasten to the platform. Easy to build stages indoors