innconee 4 pcs piano caster cups hardwood floors, grand piano floor protectors, heavy duty non-slip felt bottom leg pads for furniture (double layer,metal rubber) double layer metal rubber 4 is up for auction in Musical Instruments. The current bid is $1.00, 98% below the $46.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.