Guardian Drain Lock Hybrid Floor Sink Drain Lock 3 Inch Prevents Damage to P-Traps from Cabling Prevents Clogs and Decreased Plumbing Expenses Cuts Down On Solid Waste Prevents Floating rags/bags from Blocking Pipes A #40 Tamper Proof Torx bit for 2" or #45 for 3" can unlock your Drain Lock (Torx Bit Sold Separately)