Properties -Retrofitting of QuickFlex additional modules on the front without dismantling the socket. -Quick-thread screws for claw fastening. -Recessed claws with return spring. -High-gloss galvanized support ring insulated from the claw. With claw and screw fastening. With plug-in terminals. Accessories -Extension set for surge protection for SCHUKO sockets System M MEG2335-03xx/-04xx. -Extension set for LED lighting for SCHUKO sockets System M MEG2334-03xx/-04xx. -Extension set for control light for SCHUKO sockets System M MEG2333-03xx/-04xx Material: matt thermoplastic. Color: anthracite.