Oyaide: STB-MSX Adjustable Vinyl Stabilizer / Record Weight improves the sound of vinyl for both DJs + Audiophiles, dampens sound, lessens unwanted vibration disassemblable design, customize weight by changing number of weighted inner pieces to your preference can be used as a 45 adapter by flipping the stabilizer upside down hybrid aluminum, brass + silver construction weighs 0.44 - 1 lb / 200 - 440g