The Einhell TE-RS 18 Li Solo 4.0 Ah Accu E-Case L Starter Package is a battery-operated eccentric sander featuring an 18V lithium-ion battery system. This starter set includes the sander, a 4.0 Ah battery, and a sturdy transport case for organized transport and storage. The battery provides long runtime for continuous use on various surfaces such as floors, walls, and curved areas. With a round sanding plate of approximately 125 mm in diameter, the device accommodates standard hook-and-loop sanding discs for tool-free paper changes. The variable speed control allows adjustments from about 8,000 to 12,000 revolutions per minute for optimal performance on different materials and surface requirements. The sander operates within the Einhell Power-X-Change 18V battery system, ensuring battery compatibility with other devices in the series. The included E-Case L storage box measures approximately 45 x 35 x 25 cm and offers organized protection for the tool and accessories. The ergonomic design features a comfortable grip and balanced weight distribution to reduce user fatigue during extended use. The dust extraction system can be connected to standard vacuum systems for clean working environments. This professional eccentric sander is made from durable materials and precision components for reliable performance in woodworking, renovation, and surface finishing. The eccentric sanding motion combines rotating and oscillating movements to prevent sanding marks and achieve smooth surface results. The device weighs approximately 1.2 kg without the battery, making it handy for overhead and vertical applications. The battery includes integrated charge level indicators and safety circuits for secure operation. This complete starter package provides everything necessary for an immediate start to professional sanding tasks with the convenience of battery operation and organized storage.