I'm selling a solid metal rega tonearm weight stub and upgraded tungsten weight. This is an upgrade for your rega rb250, 300, 350 tonearm. This is standard equipment on their rb700 tonearm so if you have a lower model, this would be a very good inexpensive upgrade. I bought this about 2 months ago but decided to go in another direction. I paid $100 for the set, yours for $50.