Wood E27 threaded hemispherical lamp holder kit with hidden cable clamp and ferrule cover for lampshade

E27 hemispherical threaded wood lamp holder kit and wood ferrule cover with hidden cable clamp:
Diameter: 60 mm
Height: 63 mm
Upper hole: 17 mm

E27 black threaded thermoplastic lamp holder with 2 ferrules, IMQ certified
Cable type and section: rigid or flexible with 0.5-2.5 mm² section.
Technopolymer cable clamp included.