size selector meaning in Hindi

"' Simon Sunatori "'( born ) is a Canadian engineer, inventor and entrepreneur, known for the invention of the Multi-Lingual Knowledge Matrix Method and System, the HyperFeeder ( a squirrel-proof bird feeder with concentric perching rings and a transparent globe ), the MagneScribe ( an auto-retractable ballpoint pen with an ergonomic cushion ) and the Magic Spicer ( a self-sealing auto-aligning magnetically hanging spice dispenser with a continuously variable hole-size selector ).